Home / 206,331.48-309,470.69-79,885.04

Finding the Fourth Proportional to 206,331.48, 309,470.69 and 79,885.04

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Solution

The fourth proportional to 206,331.48, 309,470.69 and 79,885.04 is: 119,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,331.48 : 309,470.69 = 79,885.04 : x
  2. Step 2: Convert to fraction form
    206,331.48/309,470.69 = 79,885.04/x
  3. Step 3: Cross multiply
    206,331.48x = 309,470.69 × 79,885.04
  4. Step 4: Simplify right side
    206,331.48x = 24,722,077,101.84
  5. Step 5: Solve for x
    x = 24,722,077,101.84/206,331.48
  6. Step 6: Final answer
    x = 119,817.28

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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.