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Finding the Fourth Proportional to 266,523.06, 399,853.85 and 79,534.56

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Solution

The fourth proportional to 266,523.06, 399,853.85 and 79,534.56 is: 119,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,523.06 : 399,853.85 = 79,534.56 : x
  2. Step 2: Convert to fraction form
    266,523.06/399,853.85 = 79,534.56/x
  3. Step 3: Cross multiply
    266,523.06x = 399,853.85 × 79,534.56
  4. Step 4: Simplify right side
    266,523.06x = 31,802,200,024.06
  5. Step 5: Solve for x
    x = 31,802,200,024.06/266,523.06
  6. Step 6: Final answer
    x = 119,322.51

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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.