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Finding the Fourth Proportional to 443,397.40, 665,096.10 and 266,104.60

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Solution

The fourth proportional to 443,397.40, 665,096.10 and 266,104.60 is: 399,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,397.40 : 665,096.10 = 266,104.60 : x
  2. Step 2: Convert to fraction form
    443,397.40/665,096.10 = 266,104.60/x
  3. Step 3: Cross multiply
    443,397.40x = 665,096.10 × 266,104.60
  4. Step 4: Simplify right side
    443,397.40x = 176,985,131,652.06
  5. Step 5: Solve for x
    x = 176,985,131,652.06/443,397.40
  6. Step 6: Final answer
    x = 399,156.90

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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.