Home / 347,785.20-521,677.80-148,112.10

Finding the Fourth Proportional to 347,785.20, 521,677.80 and 148,112.10

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Solution

The fourth proportional to 347,785.20, 521,677.80 and 148,112.10 is: 222,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,785.20 : 521,677.80 = 148,112.10 : x
  2. Step 2: Convert to fraction form
    347,785.20/521,677.80 = 148,112.10/x
  3. Step 3: Cross multiply
    347,785.20x = 521,677.80 × 148,112.10
  4. Step 4: Simplify right side
    347,785.20x = 77,266,794,481.38
  5. Step 5: Solve for x
    x = 77,266,794,481.38/347,785.20
  6. Step 6: Final answer
    x = 222,168.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.