Home / 270,115.15-405,426.97-137,090.88

Finding the Fourth Proportional to 270,115.15, 405,426.97 and 137,090.88

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Solution

The fourth proportional to 270,115.15, 405,426.97 and 137,090.88 is: 205,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,115.15 : 405,426.97 = 137,090.88 : x
  2. Step 2: Convert to fraction form
    270,115.15/405,426.97 = 137,090.88/x
  3. Step 3: Cross multiply
    270,115.15x = 405,426.97 × 137,090.88
  4. Step 4: Simplify right side
    270,115.15x = 55,580,337,380.44
  5. Step 5: Solve for x
    x = 55,580,337,380.44/270,115.15
  6. Step 6: Final answer
    x = 205,765.35

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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.