Home / 643,000.12-964,500.18-222,046.36

Finding the Fourth Proportional to 643,000.12, 964,500.18 and 222,046.36

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Solution

The fourth proportional to 643,000.12, 964,500.18 and 222,046.36 is: 333,069.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,000.12 : 964,500.18 = 222,046.36 : x
  2. Step 2: Convert to fraction form
    643,000.12/964,500.18 = 222,046.36/x
  3. Step 3: Cross multiply
    643,000.12x = 964,500.18 × 222,046.36
  4. Step 4: Simplify right side
    643,000.12x = 214,163,754,188.35
  5. Step 5: Solve for x
    x = 214,163,754,188.35/643,000.12
  6. Step 6: Final answer
    x = 333,069.54

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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.