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Finding the Fourth Proportional to 266,110, 399,081.98 and 88,575.50

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Solution

The fourth proportional to 266,110, 399,081.98 and 88,575.50 is: 132,835.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,110 : 399,081.98 = 88,575.50 : x
  2. Step 2: Convert to fraction form
    266,110/399,081.98 = 88,575.50/x
  3. Step 3: Cross multiply
    266,110x = 399,081.98 × 88,575.50
  4. Step 4: Simplify right side
    266,110x = 35,348,885,919.49
  5. Step 5: Solve for x
    x = 35,348,885,919.49/266,110
  6. Step 6: Final answer
    x = 132,835.62

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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.