Home / 331,129.60-496,512.96-131,247.52

Finding the Fourth Proportional to 331,129.60, 496,512.96 and 131,247.52

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Solution

The fourth proportional to 331,129.60, 496,512.96 and 131,247.52 is: 196,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,129.60 : 496,512.96 = 131,247.52 : x
  2. Step 2: Convert to fraction form
    331,129.60/496,512.96 = 131,247.52/x
  3. Step 3: Cross multiply
    331,129.60x = 496,512.96 × 131,247.52
  4. Step 4: Simplify right side
    331,129.60x = 65,166,094,647.86
  5. Step 5: Solve for x
    x = 65,166,094,647.86/331,129.60
  6. Step 6: Final answer
    x = 196,799.36

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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.