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Finding the Fourth Proportional to 257,251.82, 385,921.11 and 88,727.06

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Solution

The fourth proportional to 257,251.82, 385,921.11 and 88,727.06 is: 133,105.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,251.82 : 385,921.11 = 88,727.06 : x
  2. Step 2: Convert to fraction form
    257,251.82/385,921.11 = 88,727.06/x
  3. Step 3: Cross multiply
    257,251.82x = 385,921.11 × 88,727.06
  4. Step 4: Simplify right side
    257,251.82x = 34,241,643,552.63
  5. Step 5: Solve for x
    x = 34,241,643,552.63/257,251.82
  6. Step 6: Final answer
    x = 133,105.55

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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.