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Finding the Fourth Proportional to 215.37, 297.54 and 141.66

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Solution

The fourth proportional to 215.37, 297.54 and 141.66 is: 195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.37 : 297.54 = 141.66 : x
  2. Step 2: Convert to fraction form
    215.37/297.54 = 141.66/x
  3. Step 3: Cross multiply
    215.37x = 297.54 × 141.66
  4. Step 4: Simplify right side
    215.37x = 42,149.52
  5. Step 5: Solve for x
    x = 42,149.52/215.37
  6. Step 6: Final answer
    x = 195.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.