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Finding the Fourth Proportional to 266,266.60, 399,403.43 and 88,773.67

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Solution

The fourth proportional to 266,266.60, 399,403.43 and 88,773.67 is: 133,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,266.60 : 399,403.43 = 88,773.67 : x
  2. Step 2: Convert to fraction form
    266,266.60/399,403.43 = 88,773.67/x
  3. Step 3: Cross multiply
    266,266.60x = 399,403.43 × 88,773.67
  4. Step 4: Simplify right side
    266,266.60x = 35,456,506,294.67
  5. Step 5: Solve for x
    x = 35,456,506,294.67/266,266.60
  6. Step 6: Final answer
    x = 133,161.68

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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.