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Finding the Fourth Proportional to 202.06, 278.68 and 132.06

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Solution

The fourth proportional to 202.06, 278.68 and 132.06 is: 182.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.06 : 278.68 = 132.06 : x
  2. Step 2: Convert to fraction form
    202.06/278.68 = 132.06/x
  3. Step 3: Cross multiply
    202.06x = 278.68 × 132.06
  4. Step 4: Simplify right side
    202.06x = 36,801.82
  5. Step 5: Solve for x
    x = 36,801.82/202.06
  6. Step 6: Final answer
    x = 182.14

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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.