Home / 200,411.28-276,563.88-115,531.92

Finding the Fourth Proportional to 200,411.28, 276,563.88 and 115,531.92

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Solution

The fourth proportional to 200,411.28, 276,563.88 and 115,531.92 is: 159,431.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,411.28 : 276,563.88 = 115,531.92 : x
  2. Step 2: Convert to fraction form
    200,411.28/276,563.88 = 115,531.92/x
  3. Step 3: Cross multiply
    200,411.28x = 276,563.88 × 115,531.92
  4. Step 4: Simplify right side
    200,411.28x = 31,951,956,059.05
  5. Step 5: Solve for x
    x = 31,951,956,059.05/200,411.28
  6. Step 6: Final answer
    x = 159,431.92

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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.