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Finding the Fourth Proportional to 237.36, 327.60 and 139.14

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Solution

The fourth proportional to 237.36, 327.60 and 139.14 is: 192.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.36 : 327.60 = 139.14 : x
  2. Step 2: Convert to fraction form
    237.36/327.60 = 139.14/x
  3. Step 3: Cross multiply
    237.36x = 327.60 × 139.14
  4. Step 4: Simplify right side
    237.36x = 45,582.26
  5. Step 5: Solve for x
    x = 45,582.26/237.36
  6. Step 6: Final answer
    x = 192.04

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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.