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Finding the Fourth Proportional to 200.04, 276.36 and 161.16

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Solution

The fourth proportional to 200.04, 276.36 and 161.16 is: 222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.04 : 276.36 = 161.16 : x
  2. Step 2: Convert to fraction form
    200.04/276.36 = 161.16/x
  3. Step 3: Cross multiply
    200.04x = 276.36 × 161.16
  4. Step 4: Simplify right side
    200.04x = 44,538.18
  5. Step 5: Solve for x
    x = 44,538.18/200.04
  6. Step 6: Final answer
    x = 222.65

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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.