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Finding the Fourth Proportional to 388,375.20, 582,325.20 and 151,444.80

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Solution

The fourth proportional to 388,375.20, 582,325.20 and 151,444.80 is: 227,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,375.20 : 582,325.20 = 151,444.80 : x
  2. Step 2: Convert to fraction form
    388,375.20/582,325.20 = 151,444.80/x
  3. Step 3: Cross multiply
    388,375.20x = 582,325.20 × 151,444.80
  4. Step 4: Simplify right side
    388,375.20x = 88,190,123,448.96
  5. Step 5: Solve for x
    x = 88,190,123,448.96/388,375.20
  6. Step 6: Final answer
    x = 227,074.55

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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.