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Finding the Fourth Proportional to 363.59, 501.94 and 280.51

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Solution

The fourth proportional to 363.59, 501.94 and 280.51 is: 387.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.59 : 501.94 = 280.51 : x
  2. Step 2: Convert to fraction form
    363.59/501.94 = 280.51/x
  3. Step 3: Cross multiply
    363.59x = 501.94 × 280.51
  4. Step 4: Simplify right side
    363.59x = 140,799.19
  5. Step 5: Solve for x
    x = 140,799.19/363.59
  6. Step 6: Final answer
    x = 387.25

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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.