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Finding the Fourth Proportional to 203.11, 303.40 and 151.47

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Solution

The fourth proportional to 203.11, 303.40 and 151.47 is: 226.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.11 : 303.40 = 151.47 : x
  2. Step 2: Convert to fraction form
    203.11/303.40 = 151.47/x
  3. Step 3: Cross multiply
    203.11x = 303.40 × 151.47
  4. Step 4: Simplify right side
    203.11x = 45,955.34
  5. Step 5: Solve for x
    x = 45,955.34/203.11
  6. Step 6: Final answer
    x = 226.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.