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Finding the Fourth Proportional to 496.92, 685.69 and 275.82

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Solution

The fourth proportional to 496.92, 685.69 and 275.82 is: 380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.92 : 685.69 = 275.82 : x
  2. Step 2: Convert to fraction form
    496.92/685.69 = 275.82/x
  3. Step 3: Cross multiply
    496.92x = 685.69 × 275.82
  4. Step 4: Simplify right side
    496.92x = 189,127.02
  5. Step 5: Solve for x
    x = 189,127.02/496.92
  6. Step 6: Final answer
    x = 380.60

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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.