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Finding the Fourth Proportional to 363.58, 501.89 and 247.21

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Solution

The fourth proportional to 363.58, 501.89 and 247.21 is: 341.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.58 : 501.89 = 247.21 : x
  2. Step 2: Convert to fraction form
    363.58/501.89 = 247.21/x
  3. Step 3: Cross multiply
    363.58x = 501.89 × 247.21
  4. Step 4: Simplify right side
    363.58x = 124,072.23
  5. Step 5: Solve for x
    x = 124,072.23/363.58
  6. Step 6: Final answer
    x = 341.25

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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.