Home / 218,724.18-301,817.79-123,247.86

Finding the Fourth Proportional to 218,724.18, 301,817.79 and 123,247.86

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Solution

The fourth proportional to 218,724.18, 301,817.79 and 123,247.86 is: 170,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,724.18 : 301,817.79 = 123,247.86 : x
  2. Step 2: Convert to fraction form
    218,724.18/301,817.79 = 123,247.86/x
  3. Step 3: Cross multiply
    218,724.18x = 301,817.79 × 123,247.86
  4. Step 4: Simplify right side
    218,724.18x = 37,198,396,727.43
  5. Step 5: Solve for x
    x = 37,198,396,727.43/218,724.18
  6. Step 6: Final answer
    x = 170,069.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.