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Finding the Fourth Proportional to 636,238.08, 954,332.04 and 215,513.88

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Solution

The fourth proportional to 636,238.08, 954,332.04 and 215,513.88 is: 323,262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,238.08 : 954,332.04 = 215,513.88 : x
  2. Step 2: Convert to fraction form
    636,238.08/954,332.04 = 215,513.88/x
  3. Step 3: Cross multiply
    636,238.08x = 954,332.04 × 215,513.88
  4. Step 4: Simplify right side
    636,238.08x = 205,671,800,748.72
  5. Step 5: Solve for x
    x = 205,671,800,748.72/636,238.08
  6. Step 6: Final answer
    x = 323,262.32

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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.