Home / 443,721.10-665,192.85-266,298.70

Finding the Fourth Proportional to 443,721.10, 665,192.85 and 266,298.70

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Solution

The fourth proportional to 443,721.10, 665,192.85 and 266,298.70 is: 399,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,721.10 : 665,192.85 = 266,298.70 : x
  2. Step 2: Convert to fraction form
    443,721.10/665,192.85 = 266,298.70/x
  3. Step 3: Cross multiply
    443,721.10x = 665,192.85 × 266,298.70
  4. Step 4: Simplify right side
    443,721.10x = 177,139,991,204.30
  5. Step 5: Solve for x
    x = 177,139,991,204.30/443,721.10
  6. Step 6: Final answer
    x = 399,214.71

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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.