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Finding the Fourth Proportional to 266,102.80, 399,067.80 and 88,579.60

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Solution

The fourth proportional to 266,102.80, 399,067.80 and 88,579.60 is: 132,840.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,102.80 : 399,067.80 = 88,579.60 : x
  2. Step 2: Convert to fraction form
    266,102.80/399,067.80 = 88,579.60/x
  3. Step 3: Cross multiply
    266,102.80x = 399,067.80 × 88,579.60
  4. Step 4: Simplify right side
    266,102.80x = 35,349,266,096.88
  5. Step 5: Solve for x
    x = 35,349,266,096.88/266,102.80
  6. Step 6: Final answer
    x = 132,840.64

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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.