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Finding the Fourth Proportional to 316.52, 436.92 and 185.54

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Solution

The fourth proportional to 316.52, 436.92 and 185.54 is: 256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.52 : 436.92 = 185.54 : x
  2. Step 2: Convert to fraction form
    316.52/436.92 = 185.54/x
  3. Step 3: Cross multiply
    316.52x = 436.92 × 185.54
  4. Step 4: Simplify right side
    316.52x = 81,063.95
  5. Step 5: Solve for x
    x = 81,063.95/316.52
  6. Step 6: Final answer
    x = 256.11

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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.