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Finding the Fourth Proportional to 250.72, 374.16 and 223.38

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Solution

The fourth proportional to 250.72, 374.16 and 223.38 is: 333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.72 : 374.16 = 223.38 : x
  2. Step 2: Convert to fraction form
    250.72/374.16 = 223.38/x
  3. Step 3: Cross multiply
    250.72x = 374.16 × 223.38
  4. Step 4: Simplify right side
    250.72x = 83,579.86
  5. Step 5: Solve for x
    x = 83,579.86/250.72
  6. Step 6: Final answer
    x = 333.36

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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.