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Finding the Fourth Proportional to 198,560.65, 297,768.87 and 108,669.80

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Solution

The fourth proportional to 198,560.65, 297,768.87 and 108,669.80 is: 162,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,560.65 : 297,768.87 = 108,669.80 : x
  2. Step 2: Convert to fraction form
    198,560.65/297,768.87 = 108,669.80/x
  3. Step 3: Cross multiply
    198,560.65x = 297,768.87 × 108,669.80
  4. Step 4: Simplify right side
    198,560.65x = 32,358,482,060.28
  5. Step 5: Solve for x
    x = 32,358,482,060.28/198,560.65
  6. Step 6: Final answer
    x = 162,965.23

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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.