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Finding the Fourth Proportional to 202,961.58, 280,087.52 and 112,323.79

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Solution

The fourth proportional to 202,961.58, 280,087.52 and 112,323.79 is: 155,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,961.58 : 280,087.52 = 112,323.79 : x
  2. Step 2: Convert to fraction form
    202,961.58/280,087.52 = 112,323.79/x
  3. Step 3: Cross multiply
    202,961.58x = 280,087.52 × 112,323.79
  4. Step 4: Simplify right side
    202,961.58x = 31,460,493,249.64
  5. Step 5: Solve for x
    x = 31,460,493,249.64/202,961.58
  6. Step 6: Final answer
    x = 155,007.14

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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.