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Finding the Fourth Proportional to 200.53, 299.35 and 186.25

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Solution

The fourth proportional to 200.53, 299.35 and 186.25 is: 278.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.53 : 299.35 = 186.25 : x
  2. Step 2: Convert to fraction form
    200.53/299.35 = 186.25/x
  3. Step 3: Cross multiply
    200.53x = 299.35 × 186.25
  4. Step 4: Simplify right side
    200.53x = 55,753.94
  5. Step 5: Solve for x
    x = 55,753.94/200.53
  6. Step 6: Final answer
    x = 278.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.