Home / 336,769.50-505,158.09-115,170.78

Finding the Fourth Proportional to 336,769.50, 505,158.09 and 115,170.78

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Solution

The fourth proportional to 336,769.50, 505,158.09 and 115,170.78 is: 172,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,769.50 : 505,158.09 = 115,170.78 : x
  2. Step 2: Convert to fraction form
    336,769.50/505,158.09 = 115,170.78/x
  3. Step 3: Cross multiply
    336,769.50x = 505,158.09 × 115,170.78
  4. Step 4: Simplify right side
    336,769.50x = 58,179,451,248.61
  5. Step 5: Solve for x
    x = 58,179,451,248.61/336,769.50
  6. Step 6: Final answer
    x = 172,757.48

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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.