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Finding the Fourth Proportional to 251.92, 347.51 and 152.27

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Solution

The fourth proportional to 251.92, 347.51 and 152.27 is: 210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.92 : 347.51 = 152.27 : x
  2. Step 2: Convert to fraction form
    251.92/347.51 = 152.27/x
  3. Step 3: Cross multiply
    251.92x = 347.51 × 152.27
  4. Step 4: Simplify right side
    251.92x = 52,915.35
  5. Step 5: Solve for x
    x = 52,915.35/251.92
  6. Step 6: Final answer
    x = 210.05

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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.