Home / 324,845.40-487,268.10-137,832.60

Finding the Fourth Proportional to 324,845.40, 487,268.10 and 137,832.60

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Solution

The fourth proportional to 324,845.40, 487,268.10 and 137,832.60 is: 206,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,845.40 : 487,268.10 = 137,832.60 : x
  2. Step 2: Convert to fraction form
    324,845.40/487,268.10 = 137,832.60/x
  3. Step 3: Cross multiply
    324,845.40x = 487,268.10 × 137,832.60
  4. Step 4: Simplify right side
    324,845.40x = 67,161,429,120.06
  5. Step 5: Solve for x
    x = 67,161,429,120.06/324,845.40
  6. Step 6: Final answer
    x = 206,748.90

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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.