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Finding the Fourth Proportional to 202.03, 278.80 and 110.03

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Solution

The fourth proportional to 202.03, 278.80 and 110.03 is: 151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.03 : 278.80 = 110.03 : x
  2. Step 2: Convert to fraction form
    202.03/278.80 = 110.03/x
  3. Step 3: Cross multiply
    202.03x = 278.80 × 110.03
  4. Step 4: Simplify right side
    202.03x = 30,677.06
  5. Step 5: Solve for x
    x = 30,677.06/202.03
  6. Step 6: Final answer
    x = 151.84

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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.