Home / 200,321.04-276,456.34-115,443.56

Finding the Fourth Proportional to 200,321.04, 276,456.34 and 115,443.56

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Solution

The fourth proportional to 200,321.04, 276,456.34 and 115,443.56 is: 159,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,321.04 : 276,456.34 = 115,443.56 : x
  2. Step 2: Convert to fraction form
    200,321.04/276,456.34 = 115,443.56/x
  3. Step 3: Cross multiply
    200,321.04x = 276,456.34 × 115,443.56
  4. Step 4: Simplify right side
    200,321.04x = 31,915,104,074.17
  5. Step 5: Solve for x
    x = 31,915,104,074.17/200,321.04
  6. Step 6: Final answer
    x = 159,319.78

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1.5x scale

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.