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Finding the Fourth Proportional to 538,614.97, 808,040.72 and 159,565.39

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Solution

The fourth proportional to 538,614.97, 808,040.72 and 159,565.39 is: 239,383.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,614.97 : 808,040.72 = 159,565.39 : x
  2. Step 2: Convert to fraction form
    538,614.97/808,040.72 = 159,565.39/x
  3. Step 3: Cross multiply
    538,614.97x = 808,040.72 × 159,565.39
  4. Step 4: Simplify right side
    538,614.97x = 128,935,332,622.68
  5. Step 5: Solve for x
    x = 128,935,332,622.68/538,614.97
  6. Step 6: Final answer
    x = 239,383.12

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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.