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Finding the Fourth Proportional to 202,894.72, 279,991.40 and 112,249.04

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Solution

The fourth proportional to 202,894.72, 279,991.40 and 112,249.04 is: 154,901.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,894.72 : 279,991.40 = 112,249.04 : x
  2. Step 2: Convert to fraction form
    202,894.72/279,991.40 = 112,249.04/x
  3. Step 3: Cross multiply
    202,894.72x = 279,991.40 × 112,249.04
  4. Step 4: Simplify right side
    202,894.72x = 31,428,765,858.26
  5. Step 5: Solve for x
    x = 31,428,765,858.26/202,894.72
  6. Step 6: Final answer
    x = 154,901.84

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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.