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Finding the Fourth Proportional to 374.89, 517.68 and 235.25

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Solution

The fourth proportional to 374.89, 517.68 and 235.25 is: 324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.89 : 517.68 = 235.25 : x
  2. Step 2: Convert to fraction form
    374.89/517.68 = 235.25/x
  3. Step 3: Cross multiply
    374.89x = 517.68 × 235.25
  4. Step 4: Simplify right side
    374.89x = 121,782.69
  5. Step 5: Solve for x
    x = 121,782.69/374.89
  6. Step 6: Final answer
    x = 324.85

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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.