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Finding the Fourth Proportional to 250.82, 346.10 and 156.25

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Solution

The fourth proportional to 250.82, 346.10 and 156.25 is: 215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.82 : 346.10 = 156.25 : x
  2. Step 2: Convert to fraction form
    250.82/346.10 = 156.25/x
  3. Step 3: Cross multiply
    250.82x = 346.10 × 156.25
  4. Step 4: Simplify right side
    250.82x = 54,079.19
  5. Step 5: Solve for x
    x = 54,079.19/250.82
  6. Step 6: Final answer
    x = 215.61

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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.