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Finding the Fourth Proportional to 253,255.28, 379,742.65 and 103,600.62

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Solution

The fourth proportional to 253,255.28, 379,742.65 and 103,600.62 is: 155,343.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,255.28 : 379,742.65 = 103,600.62 : x
  2. Step 2: Convert to fraction form
    253,255.28/379,742.65 = 103,600.62/x
  3. Step 3: Cross multiply
    253,255.28x = 379,742.65 × 103,600.62
  4. Step 4: Simplify right side
    253,255.28x = 39,341,573,721.44
  5. Step 5: Solve for x
    x = 39,341,573,721.44/253,255.28
  6. Step 6: Final answer
    x = 155,343.55

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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.