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Finding the Fourth Proportional to 250.89, 346.03 and 188.72

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Solution

The fourth proportional to 250.89, 346.03 and 188.72 is: 260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.89 : 346.03 = 188.72 : x
  2. Step 2: Convert to fraction form
    250.89/346.03 = 188.72/x
  3. Step 3: Cross multiply
    250.89x = 346.03 × 188.72
  4. Step 4: Simplify right side
    250.89x = 65,302.78
  5. Step 5: Solve for x
    x = 65,302.78/250.89
  6. Step 6: Final answer
    x = 260.28

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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.