Home / 443,723.10-665,195.85-266,300.70

Finding the Fourth Proportional to 443,723.10, 665,195.85 and 266,300.70

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Solution

The fourth proportional to 443,723.10, 665,195.85 and 266,300.70 is: 399,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,723.10 : 665,195.85 = 266,300.70 : x
  2. Step 2: Convert to fraction form
    443,723.10/665,195.85 = 266,300.70/x
  3. Step 3: Cross multiply
    443,723.10x = 665,195.85 × 266,300.70
  4. Step 4: Simplify right side
    443,723.10x = 177,142,120,492.10
  5. Step 5: Solve for x
    x = 177,142,120,492.10/443,723.10
  6. Step 6: Final answer
    x = 399,217.71

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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.