Home / 260,201.18-389,597.07-135,279.74

Finding the Fourth Proportional to 260,201.18, 389,597.07 and 135,279.74

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Solution

The fourth proportional to 260,201.18, 389,597.07 and 135,279.74 is: 202,553.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,201.18 : 389,597.07 = 135,279.74 : x
  2. Step 2: Convert to fraction form
    260,201.18/389,597.07 = 135,279.74/x
  3. Step 3: Cross multiply
    260,201.18x = 389,597.07 × 135,279.74
  4. Step 4: Simplify right side
    260,201.18x = 52,704,591,815.65
  5. Step 5: Solve for x
    x = 52,704,591,815.65/260,201.18
  6. Step 6: Final answer
    x = 202,553.24

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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.