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Finding the Fourth Proportional to 388,132.67, 582,198.96 and 107,649.92

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Solution

The fourth proportional to 388,132.67, 582,198.96 and 107,649.92 is: 161,474.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,132.67 : 582,198.96 = 107,649.92 : x
  2. Step 2: Convert to fraction form
    388,132.67/582,198.96 = 107,649.92/x
  3. Step 3: Cross multiply
    388,132.67x = 582,198.96 × 107,649.92
  4. Step 4: Simplify right side
    388,132.67x = 62,673,671,468.08
  5. Step 5: Solve for x
    x = 62,673,671,468.08/388,132.67
  6. Step 6: Final answer
    x = 161,474.87

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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.