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Finding the Fourth Proportional to 202.69, 303.93 and 148.62

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Solution

The fourth proportional to 202.69, 303.93 and 148.62 is: 222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.69 : 303.93 = 148.62 : x
  2. Step 2: Convert to fraction form
    202.69/303.93 = 148.62/x
  3. Step 3: Cross multiply
    202.69x = 303.93 × 148.62
  4. Step 4: Simplify right side
    202.69x = 45,170.08
  5. Step 5: Solve for x
    x = 45,170.08/202.69
  6. Step 6: Final answer
    x = 222.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.