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Finding the Fourth Proportional to 363.05, 501.16 and 215.70

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Solution

The fourth proportional to 363.05, 501.16 and 215.70 is: 297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.05 : 501.16 = 215.70 : x
  2. Step 2: Convert to fraction form
    363.05/501.16 = 215.70/x
  3. Step 3: Cross multiply
    363.05x = 501.16 × 215.70
  4. Step 4: Simplify right side
    363.05x = 108,100.21
  5. Step 5: Solve for x
    x = 108,100.21/363.05
  6. Step 6: Final answer
    x = 297.76

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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.