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Finding the Fourth Proportional to 231.25, 346.74 and 94.36

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Solution

The fourth proportional to 231.25, 346.74 and 94.36 is: 141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.25 : 346.74 = 94.36 : x
  2. Step 2: Convert to fraction form
    231.25/346.74 = 94.36/x
  3. Step 3: Cross multiply
    231.25x = 346.74 × 94.36
  4. Step 4: Simplify right side
    231.25x = 32,718.39
  5. Step 5: Solve for x
    x = 32,718.39/231.25
  6. Step 6: Final answer
    x = 141.48

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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.