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Finding the Fourth Proportional to 265.28, 395.99 and 245.23

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Solution

The fourth proportional to 265.28, 395.99 and 245.23 is: 366.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.28 : 395.99 = 245.23 : x
  2. Step 2: Convert to fraction form
    265.28/395.99 = 245.23/x
  3. Step 3: Cross multiply
    265.28x = 395.99 × 245.23
  4. Step 4: Simplify right side
    265.28x = 97,107.33
  5. Step 5: Solve for x
    x = 97,107.33/265.28
  6. Step 6: Final answer
    x = 366.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.