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Finding the Fourth Proportional to 264.48, 394.88 and 248.07

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Solution

The fourth proportional to 264.48, 394.88 and 248.07 is: 370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.48 : 394.88 = 248.07 : x
  2. Step 2: Convert to fraction form
    264.48/394.88 = 248.07/x
  3. Step 3: Cross multiply
    264.48x = 394.88 × 248.07
  4. Step 4: Simplify right side
    264.48x = 97,959.52
  5. Step 5: Solve for x
    x = 97,959.52/264.48
  6. Step 6: Final answer
    x = 370.39

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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.