Home / 260,829.20-391,373.40-103,062.80

Finding the Fourth Proportional to 260,829.20, 391,373.40 and 103,062.80

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Solution

The fourth proportional to 260,829.20, 391,373.40 and 103,062.80 is: 154,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,829.20 : 391,373.40 = 103,062.80 : x
  2. Step 2: Convert to fraction form
    260,829.20/391,373.40 = 103,062.80/x
  3. Step 3: Cross multiply
    260,829.20x = 391,373.40 × 103,062.80
  4. Step 4: Simplify right side
    260,829.20x = 40,336,038,449.52
  5. Step 5: Solve for x
    x = 40,336,038,449.52/260,829.20
  6. Step 6: Final answer
    x = 154,645.41

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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.