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Finding the Fourth Proportional to 388,242.43, 582,276.16 and 151,463.23

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Solution

The fourth proportional to 388,242.43, 582,276.16 and 151,463.23 is: 227,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,242.43 : 582,276.16 = 151,463.23 : x
  2. Step 2: Convert to fraction form
    388,242.43/582,276.16 = 151,463.23/x
  3. Step 3: Cross multiply
    388,242.43x = 582,276.16 × 151,463.23
  4. Step 4: Simplify right side
    388,242.43x = 88,193,426,679.24
  5. Step 5: Solve for x
    x = 88,193,426,679.24/388,242.43
  6. Step 6: Final answer
    x = 227,160.71

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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.