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Finding the Fourth Proportional to 251.12, 374.74 and 223.85

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Solution

The fourth proportional to 251.12, 374.74 and 223.85 is: 334.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.12 : 374.74 = 223.85 : x
  2. Step 2: Convert to fraction form
    251.12/374.74 = 223.85/x
  3. Step 3: Cross multiply
    251.12x = 374.74 × 223.85
  4. Step 4: Simplify right side
    251.12x = 83,885.55
  5. Step 5: Solve for x
    x = 83,885.55/251.12
  6. Step 6: Final answer
    x = 334.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.