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Finding the Fourth Proportional to 388,406.95, 582,377.14 and 151,861.03

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Solution

The fourth proportional to 388,406.95, 582,377.14 and 151,861.03 is: 227,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,406.95 : 582,377.14 = 151,861.03 : x
  2. Step 2: Convert to fraction form
    388,406.95/582,377.14 = 151,861.03/x
  3. Step 3: Cross multiply
    388,406.95x = 582,377.14 × 151,861.03
  4. Step 4: Simplify right side
    388,406.95x = 88,440,391,062.74
  5. Step 5: Solve for x
    x = 88,440,391,062.74/388,406.95
  6. Step 6: Final answer
    x = 227,700.33

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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.