Home / 315,586.56-435,511.07-172,346.61

Finding the Fourth Proportional to 315,586.56, 435,511.07 and 172,346.61

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Solution

The fourth proportional to 315,586.56, 435,511.07 and 172,346.61 is: 237,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,586.56 : 435,511.07 = 172,346.61 : x
  2. Step 2: Convert to fraction form
    315,586.56/435,511.07 = 172,346.61/x
  3. Step 3: Cross multiply
    315,586.56x = 435,511.07 × 172,346.61
  4. Step 4: Simplify right side
    315,586.56x = 75,058,856,531.97
  5. Step 5: Solve for x
    x = 75,058,856,531.97/315,586.56
  6. Step 6: Final answer
    x = 237,839.20

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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.