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Finding the Fourth Proportional to 315,200.67, 434,974.86 and 179,234.61

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Solution

The fourth proportional to 315,200.67, 434,974.86 and 179,234.61 is: 247,342.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,200.67 : 434,974.86 = 179,234.61 : x
  2. Step 2: Convert to fraction form
    315,200.67/434,974.86 = 179,234.61/x
  3. Step 3: Cross multiply
    315,200.67x = 434,974.86 × 179,234.61
  4. Step 4: Simplify right side
    315,200.67x = 77,962,549,391.90
  5. Step 5: Solve for x
    x = 77,962,549,391.90/315,200.67
  6. Step 6: Final answer
    x = 247,342.59

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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.