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Finding the Fourth Proportional to 266,524.20, 399,855.53 and 79,535.70

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Solution

The fourth proportional to 266,524.20, 399,855.53 and 79,535.70 is: 119,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,524.20 : 399,855.53 = 79,535.70 : x
  2. Step 2: Convert to fraction form
    266,524.20/399,855.53 = 79,535.70/x
  3. Step 3: Cross multiply
    266,524.20x = 399,855.53 × 79,535.70
  4. Step 4: Simplify right side
    266,524.20x = 31,802,787,676.98
  5. Step 5: Solve for x
    x = 31,802,787,676.98/266,524.20
  6. Step 6: Final answer
    x = 119,324.20

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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.