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Finding the Fourth Proportional to 478,171.88, 659,877.13 and 263,311.41

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Solution

The fourth proportional to 478,171.88, 659,877.13 and 263,311.41 is: 363,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,171.88 : 659,877.13 = 263,311.41 : x
  2. Step 2: Convert to fraction form
    478,171.88/659,877.13 = 263,311.41/x
  3. Step 3: Cross multiply
    478,171.88x = 659,877.13 × 263,311.41
  4. Step 4: Simplify right side
    478,171.88x = 173,753,177,527.05
  5. Step 5: Solve for x
    x = 173,753,177,527.05/478,171.88
  6. Step 6: Final answer
    x = 363,369.71

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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.