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Finding the Fourth Proportional to 252.33, 376.95 and 211.32

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Solution

The fourth proportional to 252.33, 376.95 and 211.32 is: 315.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.33 : 376.95 = 211.32 : x
  2. Step 2: Convert to fraction form
    252.33/376.95 = 211.32/x
  3. Step 3: Cross multiply
    252.33x = 376.95 × 211.32
  4. Step 4: Simplify right side
    252.33x = 79,657.07
  5. Step 5: Solve for x
    x = 79,657.07/252.33
  6. Step 6: Final answer
    x = 315.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.