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Finding the Fourth Proportional to 272,236.56, 375,716.37 and 155,961.06

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Solution

The fourth proportional to 272,236.56, 375,716.37 and 155,961.06 is: 215,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,236.56 : 375,716.37 = 155,961.06 : x
  2. Step 2: Convert to fraction form
    272,236.56/375,716.37 = 155,961.06/x
  3. Step 3: Cross multiply
    272,236.56x = 375,716.37 × 155,961.06
  4. Step 4: Simplify right side
    272,236.56x = 58,597,123,324.55
  5. Step 5: Solve for x
    x = 58,597,123,324.55/272,236.56
  6. Step 6: Final answer
    x = 215,243.40

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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.