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Finding the Fourth Proportional to 236.06, 325.70 and 137.75

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Solution

The fourth proportional to 236.06, 325.70 and 137.75 is: 190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.06 : 325.70 = 137.75 : x
  2. Step 2: Convert to fraction form
    236.06/325.70 = 137.75/x
  3. Step 3: Cross multiply
    236.06x = 325.70 × 137.75
  4. Step 4: Simplify right side
    236.06x = 44,864.82
  5. Step 5: Solve for x
    x = 44,864.82/236.06
  6. Step 6: Final answer
    x = 190.05

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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.