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Finding the Fourth Proportional to 443,447.70, 665,336.80 and 266,082

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Solution

The fourth proportional to 443,447.70, 665,336.80 and 266,082 is: 399,222.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,447.70 : 665,336.80 = 266,082 : x
  2. Step 2: Convert to fraction form
    443,447.70/665,336.80 = 266,082/x
  3. Step 3: Cross multiply
    443,447.70x = 665,336.80 × 266,082
  4. Step 4: Simplify right side
    443,447.70x = 177,034,146,417.60
  5. Step 5: Solve for x
    x = 177,034,146,417.60/443,447.70
  6. Step 6: Final answer
    x = 399,222.15

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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.