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Finding the Fourth Proportional to 379,008.68, 568,505.22 and 126,307.52

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Solution

The fourth proportional to 379,008.68, 568,505.22 and 126,307.52 is: 189,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,008.68 : 568,505.22 = 126,307.52 : x
  2. Step 2: Convert to fraction form
    379,008.68/568,505.22 = 126,307.52/x
  3. Step 3: Cross multiply
    379,008.68x = 568,505.22 × 126,307.52
  4. Step 4: Simplify right side
    379,008.68x = 71,806,484,445.25
  5. Step 5: Solve for x
    x = 71,806,484,445.25/379,008.68
  6. Step 6: Final answer
    x = 189,458.68

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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.