Home / 331,579.60-497,311.80-121,109.20

Finding the Fourth Proportional to 331,579.60, 497,311.80 and 121,109.20

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Solution

The fourth proportional to 331,579.60, 497,311.80 and 121,109.20 is: 181,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,579.60 : 497,311.80 = 121,109.20 : x
  2. Step 2: Convert to fraction form
    331,579.60/497,311.80 = 121,109.20/x
  3. Step 3: Cross multiply
    331,579.60x = 497,311.80 × 121,109.20
  4. Step 4: Simplify right side
    331,579.60x = 60,229,034,248.56
  5. Step 5: Solve for x
    x = 60,229,034,248.56/331,579.60
  6. Step 6: Final answer
    x = 181,642.76

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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.