Home / 200,310.78-276,432.14-109,665.22

Finding the Fourth Proportional to 200,310.78, 276,432.14 and 109,665.22

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Solution

The fourth proportional to 200,310.78, 276,432.14 and 109,665.22 is: 151,339.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,310.78 : 276,432.14 = 109,665.22 : x
  2. Step 2: Convert to fraction form
    200,310.78/276,432.14 = 109,665.22/x
  3. Step 3: Cross multiply
    200,310.78x = 276,432.14 × 109,665.22
  4. Step 4: Simplify right side
    200,310.78x = 30,314,991,448.17
  5. Step 5: Solve for x
    x = 30,314,991,448.17/200,310.78
  6. Step 6: Final answer
    x = 151,339.79

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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.