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Finding the Fourth Proportional to 362.91, 500.79 and 215.51

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Solution

The fourth proportional to 362.91, 500.79 and 215.51 is: 297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.91 : 500.79 = 215.51 : x
  2. Step 2: Convert to fraction form
    362.91/500.79 = 215.51/x
  3. Step 3: Cross multiply
    362.91x = 500.79 × 215.51
  4. Step 4: Simplify right side
    362.91x = 107,922.75
  5. Step 5: Solve for x
    x = 107,922.75/362.91
  6. Step 6: Final answer
    x = 297.38

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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.