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Finding the Fourth Proportional to 362.57, 500.45 and 215.26

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Solution

The fourth proportional to 362.57, 500.45 and 215.26 is: 297.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.57 : 500.45 = 215.26 : x
  2. Step 2: Convert to fraction form
    362.57/500.45 = 215.26/x
  3. Step 3: Cross multiply
    362.57x = 500.45 × 215.26
  4. Step 4: Simplify right side
    362.57x = 107,724.54
  5. Step 5: Solve for x
    x = 107,724.54/362.57
  6. Step 6: Final answer
    x = 297.12

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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.