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Finding the Fourth Proportional to 366.80, 506.28 and 250.40

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Solution

The fourth proportional to 366.80, 506.28 and 250.40 is: 345.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.80 : 506.28 = 250.40 : x
  2. Step 2: Convert to fraction form
    366.80/506.28 = 250.40/x
  3. Step 3: Cross multiply
    366.80x = 506.28 × 250.40
  4. Step 4: Simplify right side
    366.80x = 126,772.51
  5. Step 5: Solve for x
    x = 126,772.51/366.80
  6. Step 6: Final answer
    x = 345.62

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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.