Home / 267,721.32-401,500.08-90,180.72

Finding the Fourth Proportional to 267,721.32, 401,500.08 and 90,180.72

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Solution

The fourth proportional to 267,721.32, 401,500.08 and 90,180.72 is: 135,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,721.32 : 401,500.08 = 90,180.72 : x
  2. Step 2: Convert to fraction form
    267,721.32/401,500.08 = 90,180.72/x
  3. Step 3: Cross multiply
    267,721.32x = 401,500.08 × 90,180.72
  4. Step 4: Simplify right side
    267,721.32x = 36,207,566,294.46
  5. Step 5: Solve for x
    x = 36,207,566,294.46/267,721.32
  6. Step 6: Final answer
    x = 135,243.49

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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.