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Finding the Fourth Proportional to 443,188.49, 664,278.45 and 269,697.58

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Solution

The fourth proportional to 443,188.49, 664,278.45 and 269,697.58 is: 404,239.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,188.49 : 664,278.45 = 269,697.58 : x
  2. Step 2: Convert to fraction form
    443,188.49/664,278.45 = 269,697.58/x
  3. Step 3: Cross multiply
    443,188.49x = 664,278.45 × 269,697.58
  4. Step 4: Simplify right side
    443,188.49x = 179,154,292,149.90
  5. Step 5: Solve for x
    x = 179,154,292,149.90/443,188.49
  6. Step 6: Final answer
    x = 404,239.50

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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.