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Finding the Fourth Proportional to 215.34, 296.51 and 197.93

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Solution

The fourth proportional to 215.34, 296.51 and 197.93 is: 272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.34 : 296.51 = 197.93 : x
  2. Step 2: Convert to fraction form
    215.34/296.51 = 197.93/x
  3. Step 3: Cross multiply
    215.34x = 296.51 × 197.93
  4. Step 4: Simplify right side
    215.34x = 58,685.75
  5. Step 5: Solve for x
    x = 58,685.75/215.34
  6. Step 6: Final answer
    x = 272.53

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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.