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Finding the Fourth Proportional to 212.67, 295.52 and 210.42

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Solution

The fourth proportional to 212.67, 295.52 and 210.42 is: 292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.67 : 295.52 = 210.42 : x
  2. Step 2: Convert to fraction form
    212.67/295.52 = 210.42/x
  3. Step 3: Cross multiply
    212.67x = 295.52 × 210.42
  4. Step 4: Simplify right side
    212.67x = 62,182.27
  5. Step 5: Solve for x
    x = 62,182.27/212.67
  6. Step 6: Final answer
    x = 292.39

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.