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Finding the Fourth Proportional to 538,739.59, 808,227.65 and 159,689.56

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Solution

The fourth proportional to 538,739.59, 808,227.65 and 159,689.56 is: 239,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,739.59 : 808,227.65 = 159,689.56 : x
  2. Step 2: Convert to fraction form
    538,739.59/808,227.65 = 159,689.56/x
  3. Step 3: Cross multiply
    538,739.59x = 808,227.65 × 159,689.56
  4. Step 4: Simplify right side
    538,739.59x = 129,065,512,968.75
  5. Step 5: Solve for x
    x = 129,065,512,968.75/538,739.59
  6. Step 6: Final answer
    x = 239,569.39

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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.