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Finding the Fourth Proportional to 636,230.16, 954,345.24 and 215,801.28

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Solution

The fourth proportional to 636,230.16, 954,345.24 and 215,801.28 is: 323,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,230.16 : 954,345.24 = 215,801.28 : x
  2. Step 2: Convert to fraction form
    636,230.16/954,345.24 = 215,801.28/x
  3. Step 3: Cross multiply
    636,230.16x = 954,345.24 × 215,801.28
  4. Step 4: Simplify right side
    636,230.16x = 205,948,924,353.91
  5. Step 5: Solve for x
    x = 205,948,924,353.91/636,230.16
  6. Step 6: Final answer
    x = 323,701.92

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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.