Home / 331,829.30-497,780.40-121,512.80

Finding the Fourth Proportional to 331,829.30, 497,780.40 and 121,512.80

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Solution

The fourth proportional to 331,829.30, 497,780.40 and 121,512.80 is: 182,282.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,829.30 : 497,780.40 = 121,512.80 : x
  2. Step 2: Convert to fraction form
    331,829.30/497,780.40 = 121,512.80/x
  3. Step 3: Cross multiply
    331,829.30x = 497,780.40 × 121,512.80
  4. Step 4: Simplify right side
    331,829.30x = 60,486,690,189.12
  5. Step 5: Solve for x
    x = 60,486,690,189.12/331,829.30
  6. Step 6: Final answer
    x = 182,282.55

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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.