Home / 331,819.60-497,729.40-121,478.80

Finding the Fourth Proportional to 331,819.60, 497,729.40 and 121,478.80

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Solution

The fourth proportional to 331,819.60, 497,729.40 and 121,478.80 is: 182,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,819.60 : 497,729.40 = 121,478.80 : x
  2. Step 2: Convert to fraction form
    331,819.60/497,729.40 = 121,478.80/x
  3. Step 3: Cross multiply
    331,819.60x = 497,729.40 × 121,478.80
  4. Step 4: Simplify right side
    331,819.60x = 60,463,570,236.72
  5. Step 5: Solve for x
    x = 60,463,570,236.72/331,819.60
  6. Step 6: Final answer
    x = 182,218.20

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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.