Home / 331,885.20-498,022.20-121,544.40

Finding the Fourth Proportional to 331,885.20, 498,022.20 and 121,544.40

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Solution

The fourth proportional to 331,885.20, 498,022.20 and 121,544.40 is: 182,387.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,885.20 : 498,022.20 = 121,544.40 : x
  2. Step 2: Convert to fraction form
    331,885.20/498,022.20 = 121,544.40/x
  3. Step 3: Cross multiply
    331,885.20x = 498,022.20 × 121,544.40
  4. Step 4: Simplify right side
    331,885.20x = 60,531,809,485.68
  5. Step 5: Solve for x
    x = 60,531,809,485.68/331,885.20
  6. Step 6: Final answer
    x = 182,387.79

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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.