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Finding the Fourth Proportional to 275.74, 377.76 and 265.36

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Solution

The fourth proportional to 275.74, 377.76 and 265.36 is: 363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.74 : 377.76 = 265.36 : x
  2. Step 2: Convert to fraction form
    275.74/377.76 = 265.36/x
  3. Step 3: Cross multiply
    275.74x = 377.76 × 265.36
  4. Step 4: Simplify right side
    275.74x = 100,241.45
  5. Step 5: Solve for x
    x = 100,241.45/275.74
  6. Step 6: Final answer
    x = 363.54

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.