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Finding the Fourth Proportional to 342,180.40, 512,687.40 and 292,025.20

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Solution

The fourth proportional to 342,180.40, 512,687.40 and 292,025.20 is: 437,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,180.40 : 512,687.40 = 292,025.20 : x
  2. Step 2: Convert to fraction form
    342,180.40/512,687.40 = 292,025.20/x
  3. Step 3: Cross multiply
    342,180.40x = 512,687.40 × 292,025.20
  4. Step 4: Simplify right side
    342,180.40x = 149,717,640,522.48
  5. Step 5: Solve for x
    x = 149,717,640,522.48/342,180.40
  6. Step 6: Final answer
    x = 437,540.08

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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.