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Finding the Fourth Proportional to 342,773.68, 513,490.92 and 236,138.80

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Solution

The fourth proportional to 342,773.68, 513,490.92 and 236,138.80 is: 353,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,773.68 : 513,490.92 = 236,138.80 : x
  2. Step 2: Convert to fraction form
    342,773.68/513,490.92 = 236,138.80/x
  3. Step 3: Cross multiply
    342,773.68x = 513,490.92 × 236,138.80
  4. Step 4: Simplify right side
    342,773.68x = 121,255,129,659.70
  5. Step 5: Solve for x
    x = 121,255,129,659.70/342,773.68
  6. Step 6: Final answer
    x = 353,746.91

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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.