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Finding the Fourth Proportional to 342,543.43, 513,150.49 and 252,422.65

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Solution

The fourth proportional to 342,543.43, 513,150.49 and 252,422.65 is: 378,144.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,543.43 : 513,150.49 = 252,422.65 : x
  2. Step 2: Convert to fraction form
    342,543.43/513,150.49 = 252,422.65/x
  3. Step 3: Cross multiply
    342,543.43x = 513,150.49 × 252,422.65
  4. Step 4: Simplify right side
    342,543.43x = 129,530,806,534.60
  5. Step 5: Solve for x
    x = 129,530,806,534.60/342,543.43
  6. Step 6: Final answer
    x = 378,144.19

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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.