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Finding the Fourth Proportional to 388,376.76, 582,572.42 and 107,901.30

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Solution

The fourth proportional to 388,376.76, 582,572.42 and 107,901.30 is: 161,853.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,376.76 : 582,572.42 = 107,901.30 : x
  2. Step 2: Convert to fraction form
    388,376.76/582,572.42 = 107,901.30/x
  3. Step 3: Cross multiply
    388,376.76x = 582,572.42 × 107,901.30
  4. Step 4: Simplify right side
    388,376.76x = 62,860,321,462.15
  5. Step 5: Solve for x
    x = 62,860,321,462.15/388,376.76
  6. Step 6: Final answer
    x = 161,853.97

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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.