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Finding the Fourth Proportional to 215.26, 297.07 and 141.62

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Solution

The fourth proportional to 215.26, 297.07 and 141.62 is: 195.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.26 : 297.07 = 141.62 : x
  2. Step 2: Convert to fraction form
    215.26/297.07 = 141.62/x
  3. Step 3: Cross multiply
    215.26x = 297.07 × 141.62
  4. Step 4: Simplify right side
    215.26x = 42,071.05
  5. Step 5: Solve for x
    x = 42,071.05/215.26
  6. Step 6: Final answer
    x = 195.44

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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.