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Finding the Fourth Proportional to 461,131.20, 691,696.80 and 271,396.80

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Solution

The fourth proportional to 461,131.20, 691,696.80 and 271,396.80 is: 407,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,131.20 : 691,696.80 = 271,396.80 : x
  2. Step 2: Convert to fraction form
    461,131.20/691,696.80 = 271,396.80/x
  3. Step 3: Cross multiply
    461,131.20x = 691,696.80 × 271,396.80
  4. Step 4: Simplify right side
    461,131.20x = 187,724,298,090.24
  5. Step 5: Solve for x
    x = 187,724,298,090.24/461,131.20
  6. Step 6: Final answer
    x = 407,095.20

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Similar ratio
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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.