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Finding the Fourth Proportional to 266,125.44, 399,071.04 and 99,796.80

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Solution

The fourth proportional to 266,125.44, 399,071.04 and 99,796.80 is: 149,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,125.44 : 399,071.04 = 99,796.80 : x
  2. Step 2: Convert to fraction form
    266,125.44/399,071.04 = 99,796.80/x
  3. Step 3: Cross multiply
    266,125.44x = 399,071.04 × 99,796.80
  4. Step 4: Simplify right side
    266,125.44x = 39,826,012,764.67
  5. Step 5: Solve for x
    x = 39,826,012,764.67/266,125.44
  6. Step 6: Final answer
    x = 149,651.28

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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.