Home / 331,860.60-497,733.30-121,390.20

Finding the Fourth Proportional to 331,860.60, 497,733.30 and 121,390.20

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Solution

The fourth proportional to 331,860.60, 497,733.30 and 121,390.20 is: 182,064.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,860.60 : 497,733.30 = 121,390.20 : x
  2. Step 2: Convert to fraction form
    331,860.60/497,733.30 = 121,390.20/x
  3. Step 3: Cross multiply
    331,860.60x = 497,733.30 × 121,390.20
  4. Step 4: Simplify right side
    331,860.60x = 60,419,944,833.66
  5. Step 5: Solve for x
    x = 60,419,944,833.66/331,860.60
  6. Step 6: Final answer
    x = 182,064.23

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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.