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Finding the Fourth Proportional to 266,384.70, 399,577.05 and 166,851.90

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Solution

The fourth proportional to 266,384.70, 399,577.05 and 166,851.90 is: 250,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,384.70 : 399,577.05 = 166,851.90 : x
  2. Step 2: Convert to fraction form
    266,384.70/399,577.05 = 166,851.90/x
  3. Step 3: Cross multiply
    266,384.70x = 399,577.05 × 166,851.90
  4. Step 4: Simplify right side
    266,384.70x = 66,670,189,988.90
  5. Step 5: Solve for x
    x = 66,670,189,988.90/266,384.70
  6. Step 6: Final answer
    x = 250,277.85

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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.