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Finding the Fourth Proportional to 318,968.70, 440,177.22 and 173,773.77

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Solution

The fourth proportional to 318,968.70, 440,177.22 and 173,773.77 is: 239,808.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,968.70 : 440,177.22 = 173,773.77 : x
  2. Step 2: Convert to fraction form
    318,968.70/440,177.22 = 173,773.77/x
  3. Step 3: Cross multiply
    318,968.70x = 440,177.22 × 173,773.77
  4. Step 4: Simplify right side
    318,968.70x = 76,491,253,336.85
  5. Step 5: Solve for x
    x = 76,491,253,336.85/318,968.70
  6. Step 6: Final answer
    x = 239,808.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.