Home / 198,250.74-297,279.18-138,308.04

Finding the Fourth Proportional to 198,250.74, 297,279.18 and 138,308.04

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Solution

The fourth proportional to 198,250.74, 297,279.18 and 138,308.04 is: 207,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,250.74 : 297,279.18 = 138,308.04 : x
  2. Step 2: Convert to fraction form
    198,250.74/297,279.18 = 138,308.04/x
  3. Step 3: Cross multiply
    198,250.74x = 297,279.18 × 138,308.04
  4. Step 4: Simplify right side
    198,250.74x = 41,116,100,718.61
  5. Step 5: Solve for x
    x = 41,116,100,718.61/198,250.74
  6. Step 6: Final answer
    x = 207,394.44

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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.