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Finding the Fourth Proportional to 487,303.35, 730,899.15 and 127,508.97

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Solution

The fourth proportional to 487,303.35, 730,899.15 and 127,508.97 is: 191,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,303.35 : 730,899.15 = 127,508.97 : x
  2. Step 2: Convert to fraction form
    487,303.35/730,899.15 = 127,508.97/x
  3. Step 3: Cross multiply
    487,303.35x = 730,899.15 × 127,508.97
  4. Step 4: Simplify right side
    487,303.35x = 93,196,197,790.38
  5. Step 5: Solve for x
    x = 93,196,197,790.38/487,303.35
  6. Step 6: Final answer
    x = 191,248.83

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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.