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Finding the Fourth Proportional to 665,514.30, 998,271.45 and 222,282.30

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Solution

The fourth proportional to 665,514.30, 998,271.45 and 222,282.30 is: 333,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,514.30 : 998,271.45 = 222,282.30 : x
  2. Step 2: Convert to fraction form
    665,514.30/998,271.45 = 222,282.30/x
  3. Step 3: Cross multiply
    665,514.30x = 998,271.45 × 222,282.30
  4. Step 4: Simplify right side
    665,514.30x = 221,898,073,930.34
  5. Step 5: Solve for x
    x = 221,898,073,930.34/665,514.30
  6. Step 6: Final answer
    x = 333,423.45

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Half scale
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Double scale
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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.