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Finding the Fourth Proportional to 665,654.90, 998,482.35 and 222,422.90

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Solution

The fourth proportional to 665,654.90, 998,482.35 and 222,422.90 is: 333,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,654.90 : 998,482.35 = 222,422.90 : x
  2. Step 2: Convert to fraction form
    665,654.90/998,482.35 = 222,422.90/x
  3. Step 3: Cross multiply
    665,654.90x = 998,482.35 × 222,422.90
  4. Step 4: Simplify right side
    665,654.90x = 222,085,339,885.82
  5. Step 5: Solve for x
    x = 222,085,339,885.82/665,654.90
  6. Step 6: Final answer
    x = 333,634.35

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Half scale
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Double scale
Find fourth proportional to 665,655.90, 998,483.85 and 222,423.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.