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Finding the Fourth Proportional to 202,229, 279,076.02 and 112,805

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Solution

The fourth proportional to 202,229, 279,076.02 and 112,805 is: 155,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,229 : 279,076.02 = 112,805 : x
  2. Step 2: Convert to fraction form
    202,229/279,076.02 = 112,805/x
  3. Step 3: Cross multiply
    202,229x = 279,076.02 × 112,805
  4. Step 4: Simplify right side
    202,229x = 31,481,170,436.10
  5. Step 5: Solve for x
    x = 31,481,170,436.10/202,229
  6. Step 6: Final answer
    x = 155,670.90

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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.