Home / 331,947.20-498,115.20-121,606.40

Finding the Fourth Proportional to 331,947.20, 498,115.20 and 121,606.40

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Solution

The fourth proportional to 331,947.20, 498,115.20 and 121,606.40 is: 182,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,947.20 : 498,115.20 = 121,606.40 : x
  2. Step 2: Convert to fraction form
    331,947.20/498,115.20 = 121,606.40/x
  3. Step 3: Cross multiply
    331,947.20x = 498,115.20 × 121,606.40
  4. Step 4: Simplify right side
    331,947.20x = 60,573,996,257.28
  5. Step 5: Solve for x
    x = 60,573,996,257.28/331,947.20
  6. Step 6: Final answer
    x = 182,480.82

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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.