Home / 324,117.40-486,176.10-137,104.60

Finding the Fourth Proportional to 324,117.40, 486,176.10 and 137,104.60

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Solution

The fourth proportional to 324,117.40, 486,176.10 and 137,104.60 is: 205,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,117.40 : 486,176.10 = 137,104.60 : x
  2. Step 2: Convert to fraction form
    324,117.40/486,176.10 = 137,104.60/x
  3. Step 3: Cross multiply
    324,117.40x = 486,176.10 × 137,104.60
  4. Step 4: Simplify right side
    324,117.40x = 66,656,979,720.06
  5. Step 5: Solve for x
    x = 66,656,979,720.06/324,117.40
  6. Step 6: Final answer
    x = 205,656.90

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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.