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Finding the Fourth Proportional to 251.82, 347.52 and 152.26

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Solution

The fourth proportional to 251.82, 347.52 and 152.26 is: 210.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.82 : 347.52 = 152.26 : x
  2. Step 2: Convert to fraction form
    251.82/347.52 = 152.26/x
  3. Step 3: Cross multiply
    251.82x = 347.52 × 152.26
  4. Step 4: Simplify right side
    251.82x = 52,912.04
  5. Step 5: Solve for x
    x = 52,912.04/251.82
  6. Step 6: Final answer
    x = 210.12

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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.