Home / 266,286.06-399,407.22-79,297.56

Finding the Fourth Proportional to 266,286.06, 399,407.22 and 79,297.56

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Solution

The fourth proportional to 266,286.06, 399,407.22 and 79,297.56 is: 118,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,286.06 : 399,407.22 = 79,297.56 : x
  2. Step 2: Convert to fraction form
    266,286.06/399,407.22 = 79,297.56/x
  3. Step 3: Cross multiply
    266,286.06x = 399,407.22 × 79,297.56
  4. Step 4: Simplify right side
    266,286.06x = 31,672,017,992.38
  5. Step 5: Solve for x
    x = 31,672,017,992.38/266,286.06
  6. Step 6: Final answer
    x = 118,939.83

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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.