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Finding the Fourth Proportional to 266,379.26, 399,602.87 and 122,250.11

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Solution

The fourth proportional to 266,379.26, 399,602.87 and 122,250.11 is: 183,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,379.26 : 399,602.87 = 122,250.11 : x
  2. Step 2: Convert to fraction form
    266,379.26/399,602.87 = 122,250.11/x
  3. Step 3: Cross multiply
    266,379.26x = 399,602.87 × 122,250.11
  4. Step 4: Simplify right side
    266,379.26x = 48,851,494,910.75
  5. Step 5: Solve for x
    x = 48,851,494,910.75/266,379.26
  6. Step 6: Final answer
    x = 183,390.76

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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.