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Finding the Fourth Proportional to 234.95, 324.24 and 130.05

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Solution

The fourth proportional to 234.95, 324.24 and 130.05 is: 179.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.95 : 324.24 = 130.05 : x
  2. Step 2: Convert to fraction form
    234.95/324.24 = 130.05/x
  3. Step 3: Cross multiply
    234.95x = 324.24 × 130.05
  4. Step 4: Simplify right side
    234.95x = 42,167.09
  5. Step 5: Solve for x
    x = 42,167.09/234.95
  6. Step 6: Final answer
    x = 179.47

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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.