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Finding the Fourth Proportional to 205,179.48, 307,708.47 and 72,034.92

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Solution

The fourth proportional to 205,179.48, 307,708.47 and 72,034.92 is: 108,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,179.48 : 307,708.47 = 72,034.92 : x
  2. Step 2: Convert to fraction form
    205,179.48/307,708.47 = 72,034.92/x
  3. Step 3: Cross multiply
    205,179.48x = 307,708.47 × 72,034.92
  4. Step 4: Simplify right side
    205,179.48x = 22,165,755,019.77
  5. Step 5: Solve for x
    x = 22,165,755,019.77/205,179.48
  6. Step 6: Final answer
    x = 108,031.05

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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.