Home / 200,211.48-276,350.94-115,388.28

Finding the Fourth Proportional to 200,211.48, 276,350.94 and 115,388.28

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Solution

The fourth proportional to 200,211.48, 276,350.94 and 115,388.28 is: 159,269.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,211.48 : 276,350.94 = 115,388.28 : x
  2. Step 2: Convert to fraction form
    200,211.48/276,350.94 = 115,388.28/x
  3. Step 3: Cross multiply
    200,211.48x = 276,350.94 × 115,388.28
  4. Step 4: Simplify right side
    200,211.48x = 31,887,659,642.98
  5. Step 5: Solve for x
    x = 31,887,659,642.98/200,211.48
  6. Step 6: Final answer
    x = 159,269.89

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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.