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Finding the Fourth Proportional to 202.11, 278.53 and 182.23

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Solution

The fourth proportional to 202.11, 278.53 and 182.23 is: 251.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.11 : 278.53 = 182.23 : x
  2. Step 2: Convert to fraction form
    202.11/278.53 = 182.23/x
  3. Step 3: Cross multiply
    202.11x = 278.53 × 182.23
  4. Step 4: Simplify right side
    202.11x = 50,756.52
  5. Step 5: Solve for x
    x = 50,756.52/202.11
  6. Step 6: Final answer
    x = 251.13

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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.