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Finding the Fourth Proportional to 408,834.70, 613,252.05 and 267,117.10

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Solution

The fourth proportional to 408,834.70, 613,252.05 and 267,117.10 is: 400,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,834.70 : 613,252.05 = 267,117.10 : x
  2. Step 2: Convert to fraction form
    408,834.70/613,252.05 = 267,117.10/x
  3. Step 3: Cross multiply
    408,834.70x = 613,252.05 × 267,117.10
  4. Step 4: Simplify right side
    408,834.70x = 163,810,109,165.06
  5. Step 5: Solve for x
    x = 163,810,109,165.06/408,834.70
  6. Step 6: Final answer
    x = 400,675.65

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Similar ratio
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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.