Home / 206,376.20-309,595.06-73,245.31

Finding the Fourth Proportional to 206,376.20, 309,595.06 and 73,245.31

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Solution

The fourth proportional to 206,376.20, 309,595.06 and 73,245.31 is: 109,878.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,376.20 : 309,595.06 = 73,245.31 : x
  2. Step 2: Convert to fraction form
    206,376.20/309,595.06 = 73,245.31/x
  3. Step 3: Cross multiply
    206,376.20x = 309,595.06 × 73,245.31
  4. Step 4: Simplify right side
    206,376.20x = 22,676,386,144.17
  5. Step 5: Solve for x
    x = 22,676,386,144.17/206,376.20
  6. Step 6: Final answer
    x = 109,878.88

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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.