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Finding the Fourth Proportional to 443,900.88, 666,019 and 266,531.52

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Solution

The fourth proportional to 443,900.88, 666,019 and 266,531.52 is: 399,897.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,900.88 : 666,019 = 266,531.52 : x
  2. Step 2: Convert to fraction form
    443,900.88/666,019 = 266,531.52/x
  3. Step 3: Cross multiply
    443,900.88x = 666,019 × 266,531.52
  4. Step 4: Simplify right side
    443,900.88x = 177,515,056,418.88
  5. Step 5: Solve for x
    x = 177,515,056,418.88/443,900.88
  6. Step 6: Final answer
    x = 399,897.96

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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.