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Finding the Fourth Proportional to 285,599.70, 428,517.09 and 125,593.29

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Solution

The fourth proportional to 285,599.70, 428,517.09 and 125,593.29 is: 188,441.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,599.70 : 428,517.09 = 125,593.29 : x
  2. Step 2: Convert to fraction form
    285,599.70/428,517.09 = 125,593.29/x
  3. Step 3: Cross multiply
    285,599.70x = 428,517.09 × 125,593.29
  4. Step 4: Simplify right side
    285,599.70x = 53,818,871,154.33
  5. Step 5: Solve for x
    x = 53,818,871,154.33/285,599.70
  6. Step 6: Final answer
    x = 188,441.62

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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.