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Finding the Fourth Proportional to 267,909.10, 401,863.65 and 80,896.30

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Solution

The fourth proportional to 267,909.10, 401,863.65 and 80,896.30 is: 121,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,909.10 : 401,863.65 = 80,896.30 : x
  2. Step 2: Convert to fraction form
    267,909.10/401,863.65 = 80,896.30/x
  3. Step 3: Cross multiply
    267,909.10x = 401,863.65 × 80,896.30
  4. Step 4: Simplify right side
    267,909.10x = 32,509,282,389.50
  5. Step 5: Solve for x
    x = 32,509,282,389.50/267,909.10
  6. Step 6: Final answer
    x = 121,344.45

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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.