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Finding the Fourth Proportional to 443,926.62, 612,479.16 and 271,665

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Solution

The fourth proportional to 443,926.62, 612,479.16 and 271,665 is: 374,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,926.62 : 612,479.16 = 271,665 : x
  2. Step 2: Convert to fraction form
    443,926.62/612,479.16 = 271,665/x
  3. Step 3: Cross multiply
    443,926.62x = 612,479.16 × 271,665
  4. Step 4: Simplify right side
    443,926.62x = 166,389,151,001.40
  5. Step 5: Solve for x
    x = 166,389,151,001.40/443,926.62
  6. Step 6: Final answer
    x = 374,812.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.