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Finding the Fourth Proportional to 234.86, 324.29 and 146.39

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Solution

The fourth proportional to 234.86, 324.29 and 146.39 is: 202.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.86 : 324.29 = 146.39 : x
  2. Step 2: Convert to fraction form
    234.86/324.29 = 146.39/x
  3. Step 3: Cross multiply
    234.86x = 324.29 × 146.39
  4. Step 4: Simplify right side
    234.86x = 47,471.56
  5. Step 5: Solve for x
    x = 47,471.56/234.86
  6. Step 6: Final answer
    x = 202.13

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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.