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Finding the Fourth Proportional to 266.00, 400.83 and 253.85

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Solution

The fourth proportional to 266.00, 400.83 and 253.85 is: 382.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.00 : 400.83 = 253.85 : x
  2. Step 2: Convert to fraction form
    266.00/400.83 = 253.85/x
  3. Step 3: Cross multiply
    266.00x = 400.83 × 253.85
  4. Step 4: Simplify right side
    266.00x = 101,748.69
  5. Step 5: Solve for x
    x = 101,748.69/266.00
  6. Step 6: Final answer
    x = 382.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.