Home / 331,921.60-497,824.80-121,451.20

Finding the Fourth Proportional to 331,921.60, 497,824.80 and 121,451.20

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Solution

The fourth proportional to 331,921.60, 497,824.80 and 121,451.20 is: 182,155.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,921.60 : 497,824.80 = 121,451.20 : x
  2. Step 2: Convert to fraction form
    331,921.60/497,824.80 = 121,451.20/x
  3. Step 3: Cross multiply
    331,921.60x = 497,824.80 × 121,451.20
  4. Step 4: Simplify right side
    331,921.60x = 60,461,419,349.76
  5. Step 5: Solve for x
    x = 60,461,419,349.76/331,921.60
  6. Step 6: Final answer
    x = 182,155.72

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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.