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Finding the Fourth Proportional to 347,373.38, 479,375.27 and 188,397.38

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Solution

The fourth proportional to 347,373.38, 479,375.27 and 188,397.38 is: 259,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,373.38 : 479,375.27 = 188,397.38 : x
  2. Step 2: Convert to fraction form
    347,373.38/479,375.27 = 188,397.38/x
  3. Step 3: Cross multiply
    347,373.38x = 479,375.27 × 188,397.38
  4. Step 4: Simplify right side
    347,373.38x = 90,313,041,565.93
  5. Step 5: Solve for x
    x = 90,313,041,565.93/347,373.38
  6. Step 6: Final answer
    x = 259,988.38

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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.