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Finding the Fourth Proportional to 266,324.08, 399,543.72 and 79,350.64

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Solution

The fourth proportional to 266,324.08, 399,543.72 and 79,350.64 is: 119,043.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,324.08 : 399,543.72 = 79,350.64 : x
  2. Step 2: Convert to fraction form
    266,324.08/399,543.72 = 79,350.64/x
  3. Step 3: Cross multiply
    266,324.08x = 399,543.72 × 79,350.64
  4. Step 4: Simplify right side
    266,324.08x = 31,704,049,889.98
  5. Step 5: Solve for x
    x = 31,704,049,889.98/266,324.08
  6. Step 6: Final answer
    x = 119,043.12

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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.