Home / 200,318.52-276,626.88-128,822.66

Finding the Fourth Proportional to 200,318.52, 276,626.88 and 128,822.66

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Solution

The fourth proportional to 200,318.52, 276,626.88 and 128,822.66 is: 177,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,318.52 : 276,626.88 = 128,822.66 : x
  2. Step 2: Convert to fraction form
    200,318.52/276,626.88 = 128,822.66/x
  3. Step 3: Cross multiply
    200,318.52x = 276,626.88 × 128,822.66
  4. Step 4: Simplify right side
    200,318.52x = 35,635,809,125.97
  5. Step 5: Solve for x
    x = 35,635,809,125.97/200,318.52
  6. Step 6: Final answer
    x = 177,895.73

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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.