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Finding the Fourth Proportional to 419,250.96, 628,082.12 and 247,960.26

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Solution

The fourth proportional to 419,250.96, 628,082.12 and 247,960.26 is: 371,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,250.96 : 628,082.12 = 247,960.26 : x
  2. Step 2: Convert to fraction form
    419,250.96/628,082.12 = 247,960.26/x
  3. Step 3: Cross multiply
    419,250.96x = 628,082.12 × 247,960.26
  4. Step 4: Simplify right side
    419,250.96x = 155,739,404,536.75
  5. Step 5: Solve for x
    x = 155,739,404,536.75/419,250.96
  6. Step 6: Final answer
    x = 371,470.60

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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.