Home / 331,945.20-498,112.20-121,604.40

Finding the Fourth Proportional to 331,945.20, 498,112.20 and 121,604.40

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Solution

The fourth proportional to 331,945.20, 498,112.20 and 121,604.40 is: 182,477.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,945.20 : 498,112.20 = 121,604.40 : x
  2. Step 2: Convert to fraction form
    331,945.20/498,112.20 = 121,604.40/x
  3. Step 3: Cross multiply
    331,945.20x = 498,112.20 × 121,604.40
  4. Step 4: Simplify right side
    331,945.20x = 60,572,635,213.68
  5. Step 5: Solve for x
    x = 60,572,635,213.68/331,945.20
  6. Step 6: Final answer
    x = 182,477.82

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1.5x scale

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.