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Finding the Fourth Proportional to 259,447.59, 389,003.67 and 101,691.99

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Solution

The fourth proportional to 259,447.59, 389,003.67 and 101,691.99 is: 152,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,447.59 : 389,003.67 = 101,691.99 : x
  2. Step 2: Convert to fraction form
    259,447.59/389,003.67 = 101,691.99/x
  3. Step 3: Cross multiply
    259,447.59x = 389,003.67 × 101,691.99
  4. Step 4: Simplify right side
    259,447.59x = 39,558,557,319.60
  5. Step 5: Solve for x
    x = 39,558,557,319.60/259,447.59
  6. Step 6: Final answer
    x = 152,472.25

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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.