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Finding the Fourth Proportional to 202,877.48, 279,979.17 and 112,231.89

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Solution

The fourth proportional to 202,877.48, 279,979.17 and 112,231.89 is: 154,884.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,877.48 : 279,979.17 = 112,231.89 : x
  2. Step 2: Convert to fraction form
    202,877.48/279,979.17 = 112,231.89/x
  3. Step 3: Cross multiply
    202,877.48x = 279,979.17 × 112,231.89
  4. Step 4: Simplify right side
    202,877.48x = 31,422,590,009.84
  5. Step 5: Solve for x
    x = 31,422,590,009.84/202,877.48
  6. Step 6: Final answer
    x = 154,884.57

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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.