Home / 198,310.23-297,363.24-79,949.79

Finding the Fourth Proportional to 198,310.23, 297,363.24 and 79,949.79

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Solution

The fourth proportional to 198,310.23, 297,363.24 and 79,949.79 is: 119,883.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,310.23 : 297,363.24 = 79,949.79 : x
  2. Step 2: Convert to fraction form
    198,310.23/297,363.24 = 79,949.79/x
  3. Step 3: Cross multiply
    198,310.23x = 297,363.24 × 79,949.79
  4. Step 4: Simplify right side
    198,310.23x = 23,774,128,591.72
  5. Step 5: Solve for x
    x = 23,774,128,591.72/198,310.23
  6. Step 6: Final answer
    x = 119,883.52

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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.