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Finding the Fourth Proportional to 373.77, 515.83 and 226.38

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Solution

The fourth proportional to 373.77, 515.83 and 226.38 is: 312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.77 : 515.83 = 226.38 : x
  2. Step 2: Convert to fraction form
    373.77/515.83 = 226.38/x
  3. Step 3: Cross multiply
    373.77x = 515.83 × 226.38
  4. Step 4: Simplify right side
    373.77x = 116,773.60
  5. Step 5: Solve for x
    x = 116,773.60/373.77
  6. Step 6: Final answer
    x = 312.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.