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Finding the Fourth Proportional to 388,374.32, 582,593.08 and 107,891.58

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Solution

The fourth proportional to 388,374.32, 582,593.08 and 107,891.58 is: 161,846.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,374.32 : 582,593.08 = 107,891.58 : x
  2. Step 2: Convert to fraction form
    388,374.32/582,593.08 = 107,891.58/x
  3. Step 3: Cross multiply
    388,374.32x = 582,593.08 × 107,891.58
  4. Step 4: Simplify right side
    388,374.32x = 62,856,887,898.27
  5. Step 5: Solve for x
    x = 62,856,887,898.27/388,374.32
  6. Step 6: Final answer
    x = 161,846.15

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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.