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Finding the Fourth Proportional to 436.31, 602.08 and 249.76

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Solution

The fourth proportional to 436.31, 602.08 and 249.76 is: 344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.31 : 602.08 = 249.76 : x
  2. Step 2: Convert to fraction form
    436.31/602.08 = 249.76/x
  3. Step 3: Cross multiply
    436.31x = 602.08 × 249.76
  4. Step 4: Simplify right side
    436.31x = 150,373.37
  5. Step 5: Solve for x
    x = 150,373.37/436.31
  6. Step 6: Final answer
    x = 344.65

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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.