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Finding the Fourth Proportional to 443,529, 665,398.80 and 144,010.44

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Solution

The fourth proportional to 443,529, 665,398.80 and 144,010.44 is: 216,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,529 : 665,398.80 = 144,010.44 : x
  2. Step 2: Convert to fraction form
    443,529/665,398.80 = 144,010.44/x
  3. Step 3: Cross multiply
    443,529x = 665,398.80 × 144,010.44
  4. Step 4: Simplify right side
    443,529x = 95,824,373,963.47
  5. Step 5: Solve for x
    x = 95,824,373,963.47/443,529
  6. Step 6: Final answer
    x = 216,049.85

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1.5x scale

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.