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Finding the Fourth Proportional to 331,002.78, 456,770.39 and 187,759.75

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Solution

The fourth proportional to 331,002.78, 456,770.39 and 187,759.75 is: 259,100.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,002.78 : 456,770.39 = 187,759.75 : x
  2. Step 2: Convert to fraction form
    331,002.78/456,770.39 = 187,759.75/x
  3. Step 3: Cross multiply
    331,002.78x = 456,770.39 × 187,759.75
  4. Step 4: Simplify right side
    331,002.78x = 85,763,094,233.80
  5. Step 5: Solve for x
    x = 85,763,094,233.80/331,002.78
  6. Step 6: Final answer
    x = 259,100.83

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1.5x scale

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.