Home / 266,079.12-397,906.20-198,658.32

Finding the Fourth Proportional to 266,079.12, 397,906.20 and 198,658.32

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Solution

The fourth proportional to 266,079.12, 397,906.20 and 198,658.32 is: 297,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,079.12 : 397,906.20 = 198,658.32 : x
  2. Step 2: Convert to fraction form
    266,079.12/397,906.20 = 198,658.32/x
  3. Step 3: Cross multiply
    266,079.12x = 397,906.20 × 198,658.32
  4. Step 4: Simplify right side
    266,079.12x = 79,047,377,209.58
  5. Step 5: Solve for x
    x = 79,047,377,209.58/266,079.12
  6. Step 6: Final answer
    x = 297,082.23

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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.