Home / 331,859.60-497,789.40-121,518.80

Finding the Fourth Proportional to 331,859.60, 497,789.40 and 121,518.80

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Solution

The fourth proportional to 331,859.60, 497,789.40 and 121,518.80 is: 182,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,859.60 : 497,789.40 = 121,518.80 : x
  2. Step 2: Convert to fraction form
    331,859.60/497,789.40 = 121,518.80/x
  3. Step 3: Cross multiply
    331,859.60x = 497,789.40 × 121,518.80
  4. Step 4: Simplify right side
    331,859.60x = 60,490,770,540.72
  5. Step 5: Solve for x
    x = 60,490,770,540.72/331,859.60
  6. Step 6: Final answer
    x = 182,278.20

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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.