Home / 200,310.90-276,432.32-109,665.36

Finding the Fourth Proportional to 200,310.90, 276,432.32 and 109,665.36

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Solution

The fourth proportional to 200,310.90, 276,432.32 and 109,665.36 is: 151,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,310.90 : 276,432.32 = 109,665.36 : x
  2. Step 2: Convert to fraction form
    200,310.90/276,432.32 = 109,665.36/x
  3. Step 3: Cross multiply
    200,310.90x = 276,432.32 × 109,665.36
  4. Step 4: Simplify right side
    200,310.90x = 30,315,049,888.44
  5. Step 5: Solve for x
    x = 30,315,049,888.44/200,310.90
  6. Step 6: Final answer
    x = 151,339.99

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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.