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Finding the Fourth Proportional to 315,147.88, 434,886.27 and 179,162.92

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Solution

The fourth proportional to 315,147.88, 434,886.27 and 179,162.92 is: 247,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,147.88 : 434,886.27 = 179,162.92 : x
  2. Step 2: Convert to fraction form
    315,147.88/434,886.27 = 179,162.92/x
  3. Step 3: Cross multiply
    315,147.88x = 434,886.27 × 179,162.92
  4. Step 4: Simplify right side
    315,147.88x = 77,915,494,001.11
  5. Step 5: Solve for x
    x = 77,915,494,001.11/315,147.88
  6. Step 6: Final answer
    x = 247,234.71

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1.5x scale

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.