Home / 345,471.48-518,502.60-135,257.04

Finding the Fourth Proportional to 345,471.48, 518,502.60 and 135,257.04

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Solution

The fourth proportional to 345,471.48, 518,502.60 and 135,257.04 is: 203,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,471.48 : 518,502.60 = 135,257.04 : x
  2. Step 2: Convert to fraction form
    345,471.48/518,502.60 = 135,257.04/x
  3. Step 3: Cross multiply
    345,471.48x = 518,502.60 × 135,257.04
  4. Step 4: Simplify right side
    345,471.48x = 70,131,126,908.30
  5. Step 5: Solve for x
    x = 70,131,126,908.30/345,471.48
  6. Step 6: Final answer
    x = 203,001.21

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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.