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Finding the Fourth Proportional to 362.72, 500.64 and 207.56

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Solution

The fourth proportional to 362.72, 500.64 and 207.56 is: 286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.72 : 500.64 = 207.56 : x
  2. Step 2: Convert to fraction form
    362.72/500.64 = 207.56/x
  3. Step 3: Cross multiply
    362.72x = 500.64 × 207.56
  4. Step 4: Simplify right side
    362.72x = 103,912.84
  5. Step 5: Solve for x
    x = 103,912.84/362.72
  6. Step 6: Final answer
    x = 286.48

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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.