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Finding the Fourth Proportional to 425,350.56, 638,150.40 and 125,839.08

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Solution

The fourth proportional to 425,350.56, 638,150.40 and 125,839.08 is: 188,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,350.56 : 638,150.40 = 125,839.08 : x
  2. Step 2: Convert to fraction form
    425,350.56/638,150.40 = 125,839.08/x
  3. Step 3: Cross multiply
    425,350.56x = 638,150.40 × 125,839.08
  4. Step 4: Simplify right side
    425,350.56x = 80,304,259,237.63
  5. Step 5: Solve for x
    x = 80,304,259,237.63/425,350.56
  6. Step 6: Final answer
    x = 188,795.47

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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.