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Finding the Fourth Proportional to 388,180.56, 582,267.60 and 107,697.84

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Solution

The fourth proportional to 388,180.56, 582,267.60 and 107,697.84 is: 161,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,180.56 : 582,267.60 = 107,697.84 : x
  2. Step 2: Convert to fraction form
    388,180.56/582,267.60 = 107,697.84/x
  3. Step 3: Cross multiply
    388,180.56x = 582,267.60 × 107,697.84
  4. Step 4: Simplify right side
    388,180.56x = 62,708,962,821.98
  5. Step 5: Solve for x
    x = 62,708,962,821.98/388,180.56
  6. Step 6: Final answer
    x = 161,545.86

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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.