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Finding the Fourth Proportional to 275.04, 378.66 and 240.52

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Solution

The fourth proportional to 275.04, 378.66 and 240.52 is: 331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.04 : 378.66 = 240.52 : x
  2. Step 2: Convert to fraction form
    275.04/378.66 = 240.52/x
  3. Step 3: Cross multiply
    275.04x = 378.66 × 240.52
  4. Step 4: Simplify right side
    275.04x = 91,075.30
  5. Step 5: Solve for x
    x = 91,075.30/275.04
  6. Step 6: Final answer
    x = 331.13

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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.