Home / 388,126.46-582,005.31-135,376.24

Finding the Fourth Proportional to 388,126.46, 582,005.31 and 135,376.24

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Solution

The fourth proportional to 388,126.46, 582,005.31 and 135,376.24 is: 203,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,126.46 : 582,005.31 = 135,376.24 : x
  2. Step 2: Convert to fraction form
    388,126.46/582,005.31 = 135,376.24/x
  3. Step 3: Cross multiply
    388,126.46x = 582,005.31 × 135,376.24
  4. Step 4: Simplify right side
    388,126.46x = 78,789,690,527.83
  5. Step 5: Solve for x
    x = 78,789,690,527.83/388,126.46
  6. Step 6: Final answer
    x = 203,000.05

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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.