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Finding the Fourth Proportional to 636,228.52, 954,317.85 and 215,504.38

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Solution

The fourth proportional to 636,228.52, 954,317.85 and 215,504.38 is: 323,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,228.52 : 954,317.85 = 215,504.38 : x
  2. Step 2: Convert to fraction form
    636,228.52/954,317.85 = 215,504.38/x
  3. Step 3: Cross multiply
    636,228.52x = 954,317.85 × 215,504.38
  4. Step 4: Simplify right side
    636,228.52x = 205,659,676,587.18
  5. Step 5: Solve for x
    x = 205,659,676,587.18/636,228.52
  6. Step 6: Final answer
    x = 323,248.13

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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.