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Finding the Fourth Proportional to 267,910.10, 401,865.15 and 80,897.30

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Solution

The fourth proportional to 267,910.10, 401,865.15 and 80,897.30 is: 121,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,910.10 : 401,865.15 = 80,897.30 : x
  2. Step 2: Convert to fraction form
    267,910.10/401,865.15 = 80,897.30/x
  3. Step 3: Cross multiply
    267,910.10x = 401,865.15 × 80,897.30
  4. Step 4: Simplify right side
    267,910.10x = 32,509,805,599.10
  5. Step 5: Solve for x
    x = 32,509,805,599.10/267,910.10
  6. Step 6: Final answer
    x = 121,345.95

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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.