Home / 260,796.85-391,195.27-142,403.60

Finding the Fourth Proportional to 260,796.85, 391,195.27 and 142,403.60

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Solution

The fourth proportional to 260,796.85, 391,195.27 and 142,403.60 is: 213,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,796.85 : 391,195.27 = 142,403.60 : x
  2. Step 2: Convert to fraction form
    260,796.85/391,195.27 = 142,403.60/x
  3. Step 3: Cross multiply
    260,796.85x = 391,195.27 × 142,403.60
  4. Step 4: Simplify right side
    260,796.85x = 55,707,614,750.97
  5. Step 5: Solve for x
    x = 55,707,614,750.97/260,796.85
  6. Step 6: Final answer
    x = 213,605.40

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1.5x scale

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.