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Finding the Fourth Proportional to 220.39, 303.95 and 150.50

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Solution

The fourth proportional to 220.39, 303.95 and 150.50 is: 207.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.39 : 303.95 = 150.50 : x
  2. Step 2: Convert to fraction form
    220.39/303.95 = 150.50/x
  3. Step 3: Cross multiply
    220.39x = 303.95 × 150.50
  4. Step 4: Simplify right side
    220.39x = 45,743.33
  5. Step 5: Solve for x
    x = 45,743.33/220.39
  6. Step 6: Final answer
    x = 207.56

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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.