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Finding the Fourth Proportional to 271,719.65, 404,763.78 and 267,248.45

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Solution

The fourth proportional to 271,719.65, 404,763.78 and 267,248.45 is: 398,103.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,719.65 : 404,763.78 = 267,248.45 : x
  2. Step 2: Convert to fraction form
    271,719.65/404,763.78 = 267,248.45/x
  3. Step 3: Cross multiply
    271,719.65x = 404,763.78 × 267,248.45
  4. Step 4: Simplify right side
    271,719.65x = 108,172,492,821.14
  5. Step 5: Solve for x
    x = 108,172,492,821.14/271,719.65
  6. Step 6: Final answer
    x = 398,103.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.