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Finding the Fourth Proportional to 636,240.26, 954,335.48 and 215,516.13

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Solution

The fourth proportional to 636,240.26, 954,335.48 and 215,516.13 is: 323,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,240.26 : 954,335.48 = 215,516.13 : x
  2. Step 2: Convert to fraction form
    636,240.26/954,335.48 = 215,516.13/x
  3. Step 3: Cross multiply
    636,240.26x = 954,335.48 × 215,516.13
  4. Step 4: Simplify right side
    636,240.26x = 205,674,688,293.71
  5. Step 5: Solve for x
    x = 205,674,688,293.71/636,240.26
  6. Step 6: Final answer
    x = 323,265.76

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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.