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Finding the Fourth Proportional to 275.96, 376.96 and 274.16

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Solution

The fourth proportional to 275.96, 376.96 and 274.16 is: 374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.96 : 376.96 = 274.16 : x
  2. Step 2: Convert to fraction form
    275.96/376.96 = 274.16/x
  3. Step 3: Cross multiply
    275.96x = 376.96 × 274.16
  4. Step 4: Simplify right side
    275.96x = 103,347.35
  5. Step 5: Solve for x
    x = 103,347.35/275.96
  6. Step 6: Final answer
    x = 374.50

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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.