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Finding the Fourth Proportional to 236.02, 325.72 and 131.11

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Solution

The fourth proportional to 236.02, 325.72 and 131.11 is: 180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.02 : 325.72 = 131.11 : x
  2. Step 2: Convert to fraction form
    236.02/325.72 = 131.11/x
  3. Step 3: Cross multiply
    236.02x = 325.72 × 131.11
  4. Step 4: Simplify right side
    236.02x = 42,703.35
  5. Step 5: Solve for x
    x = 42,703.35/236.02
  6. Step 6: Final answer
    x = 180.93

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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.