Home / 243,349.29-335,788.83-135,905.61

Finding the Fourth Proportional to 243,349.29, 335,788.83 and 135,905.61

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Solution

The fourth proportional to 243,349.29, 335,788.83 and 135,905.61 is: 187,531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,349.29 : 335,788.83 = 135,905.61 : x
  2. Step 2: Convert to fraction form
    243,349.29/335,788.83 = 135,905.61/x
  3. Step 3: Cross multiply
    243,349.29x = 335,788.83 × 135,905.61
  4. Step 4: Simplify right side
    243,349.29x = 45,635,585,772.34
  5. Step 5: Solve for x
    x = 45,635,585,772.34/243,349.29
  6. Step 6: Final answer
    x = 187,531.21

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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.