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Finding the Fourth Proportional to 212.28, 292.97 and 177.26

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Solution

The fourth proportional to 212.28, 292.97 and 177.26 is: 244.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.28 : 292.97 = 177.26 : x
  2. Step 2: Convert to fraction form
    212.28/292.97 = 177.26/x
  3. Step 3: Cross multiply
    212.28x = 292.97 × 177.26
  4. Step 4: Simplify right side
    212.28x = 51,931.86
  5. Step 5: Solve for x
    x = 51,931.86/212.28
  6. Step 6: Final answer
    x = 244.64

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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.