Home / 267,515.20-401,272.80-90,003.70

Finding the Fourth Proportional to 267,515.20, 401,272.80 and 90,003.70

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Solution

The fourth proportional to 267,515.20, 401,272.80 and 90,003.70 is: 135,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,515.20 : 401,272.80 = 90,003.70 : x
  2. Step 2: Convert to fraction form
    267,515.20/401,272.80 = 90,003.70/x
  3. Step 3: Cross multiply
    267,515.20x = 401,272.80 × 90,003.70
  4. Step 4: Simplify right side
    267,515.20x = 36,116,036,709.36
  5. Step 5: Solve for x
    x = 36,116,036,709.36/267,515.20
  6. Step 6: Final answer
    x = 135,005.55

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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.