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Finding the Fourth Proportional to 443,862.05, 665,960.67 and 266,492.70

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Solution

The fourth proportional to 443,862.05, 665,960.67 and 266,492.70 is: 399,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,862.05 : 665,960.67 = 266,492.70 : x
  2. Step 2: Convert to fraction form
    443,862.05/665,960.67 = 266,492.70/x
  3. Step 3: Cross multiply
    443,862.05x = 665,960.67 × 266,492.70
  4. Step 4: Simplify right side
    443,862.05x = 177,473,657,042.11
  5. Step 5: Solve for x
    x = 177,473,657,042.11/443,862.05
  6. Step 6: Final answer
    x = 399,839.68

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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.