Home / 272,891.40-409,337.10-271,141.80

Finding the Fourth Proportional to 272,891.40, 409,337.10 and 271,141.80

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Solution

The fourth proportional to 272,891.40, 409,337.10 and 271,141.80 is: 406,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,891.40 : 409,337.10 = 271,141.80 : x
  2. Step 2: Convert to fraction form
    272,891.40/409,337.10 = 271,141.80/x
  3. Step 3: Cross multiply
    272,891.40x = 409,337.10 × 271,141.80
  4. Step 4: Simplify right side
    272,891.40x = 110,988,398,100.78
  5. Step 5: Solve for x
    x = 110,988,398,100.78/272,891.40
  6. Step 6: Final answer
    x = 406,712.70

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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.