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Finding the Fourth Proportional to 306.44, 459.17 and 237.20

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Solution

The fourth proportional to 306.44, 459.17 and 237.20 is: 355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.44 : 459.17 = 237.20 : x
  2. Step 2: Convert to fraction form
    306.44/459.17 = 237.20/x
  3. Step 3: Cross multiply
    306.44x = 459.17 × 237.20
  4. Step 4: Simplify right side
    306.44x = 108,911.64
  5. Step 5: Solve for x
    x = 108,911.64/306.44
  6. Step 6: Final answer
    x = 355.42

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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.