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Finding the Fourth Proportional to 198,219.88, 297,105.18 and 98,449.48

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Solution

The fourth proportional to 198,219.88, 297,105.18 and 98,449.48 is: 147,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,219.88 : 297,105.18 = 98,449.48 : x
  2. Step 2: Convert to fraction form
    198,219.88/297,105.18 = 98,449.48/x
  3. Step 3: Cross multiply
    198,219.88x = 297,105.18 × 98,449.48
  4. Step 4: Simplify right side
    198,219.88x = 29,249,850,476.31
  5. Step 5: Solve for x
    x = 29,249,850,476.31/198,219.88
  6. Step 6: Final answer
    x = 147,562.65

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1.5x scale

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.