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Finding the Fourth Proportional to 199.04, 274.56 and 116.12

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Solution

The fourth proportional to 199.04, 274.56 and 116.12 is: 160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.04 : 274.56 = 116.12 : x
  2. Step 2: Convert to fraction form
    199.04/274.56 = 116.12/x
  3. Step 3: Cross multiply
    199.04x = 274.56 × 116.12
  4. Step 4: Simplify right side
    199.04x = 31,880.53
  5. Step 5: Solve for x
    x = 31,880.53/199.04
  6. Step 6: Final answer
    x = 160.18

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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.