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Finding the Fourth Proportional to 220.57, 304.07 and 173.75

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Solution

The fourth proportional to 220.57, 304.07 and 173.75 is: 239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.57 : 304.07 = 173.75 : x
  2. Step 2: Convert to fraction form
    220.57/304.07 = 173.75/x
  3. Step 3: Cross multiply
    220.57x = 304.07 × 173.75
  4. Step 4: Simplify right side
    220.57x = 52,831.29
  5. Step 5: Solve for x
    x = 52,831.29/220.57
  6. Step 6: Final answer
    x = 239.53

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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.