Home / 331,912.60-497,811.30-121,442.20

Finding the Fourth Proportional to 331,912.60, 497,811.30 and 121,442.20

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Solution

The fourth proportional to 331,912.60, 497,811.30 and 121,442.20 is: 182,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,912.60 : 497,811.30 = 121,442.20 : x
  2. Step 2: Convert to fraction form
    331,912.60/497,811.30 = 121,442.20/x
  3. Step 3: Cross multiply
    331,912.60x = 497,811.30 × 121,442.20
  4. Step 4: Simplify right side
    331,912.60x = 60,455,299,456.86
  5. Step 5: Solve for x
    x = 60,455,299,456.86/331,912.60
  6. Step 6: Final answer
    x = 182,142.22

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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.