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Finding the Fourth Proportional to 538,746.29, 808,123.47 and 239,146.32

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Solution

The fourth proportional to 538,746.29, 808,123.47 and 239,146.32 is: 358,721.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,746.29 : 808,123.47 = 239,146.32 : x
  2. Step 2: Convert to fraction form
    538,746.29/808,123.47 = 239,146.32/x
  3. Step 3: Cross multiply
    538,746.29x = 808,123.47 × 239,146.32
  4. Step 4: Simplify right side
    538,746.29x = 193,259,753,956.13
  5. Step 5: Solve for x
    x = 193,259,753,956.13/538,746.29
  6. Step 6: Final answer
    x = 358,721.27

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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.