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Finding the Fourth Proportional to 265.33, 395.74 and 248.79

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Solution

The fourth proportional to 265.33, 395.74 and 248.79 is: 371.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.33 : 395.74 = 248.79 : x
  2. Step 2: Convert to fraction form
    265.33/395.74 = 248.79/x
  3. Step 3: Cross multiply
    265.33x = 395.74 × 248.79
  4. Step 4: Simplify right side
    265.33x = 98,455.53
  5. Step 5: Solve for x
    x = 98,455.53/265.33
  6. Step 6: Final answer
    x = 371.07

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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.