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Finding the Fourth Proportional to 202.32, 303.28 and 154.13

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Solution

The fourth proportional to 202.32, 303.28 and 154.13 is: 231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.32 : 303.28 = 154.13 : x
  2. Step 2: Convert to fraction form
    202.32/303.28 = 154.13/x
  3. Step 3: Cross multiply
    202.32x = 303.28 × 154.13
  4. Step 4: Simplify right side
    202.32x = 46,742.64
  5. Step 5: Solve for x
    x = 46,742.64/202.32
  6. Step 6: Final answer
    x = 231.03

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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.