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Finding the Fourth Proportional to 358.55, 540.50 and 327.79

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Solution

The fourth proportional to 358.55, 540.50 and 327.79 is: 494.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.55 : 540.50 = 327.79 : x
  2. Step 2: Convert to fraction form
    358.55/540.50 = 327.79/x
  3. Step 3: Cross multiply
    358.55x = 540.50 × 327.79
  4. Step 4: Simplify right side
    358.55x = 177,169.53
  5. Step 5: Solve for x
    x = 177,169.53/358.55
  6. Step 6: Final answer
    x = 494.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.