Home / 388,147.50-582,221.25-107,664.75

Finding the Fourth Proportional to 388,147.50, 582,221.25 and 107,664.75

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Solution

The fourth proportional to 388,147.50, 582,221.25 and 107,664.75 is: 161,497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,147.50 : 582,221.25 = 107,664.75 : x
  2. Step 2: Convert to fraction form
    388,147.50/582,221.25 = 107,664.75/x
  3. Step 3: Cross multiply
    388,147.50x = 582,221.25 × 107,664.75
  4. Step 4: Simplify right side
    388,147.50x = 62,684,705,325.94
  5. Step 5: Solve for x
    x = 62,684,705,325.94/388,147.50
  6. Step 6: Final answer
    x = 161,497.13

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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.