Home / 200,278.81-276,385.11-109,634.84

Finding the Fourth Proportional to 200,278.81, 276,385.11 and 109,634.84

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Solution

The fourth proportional to 200,278.81, 276,385.11 and 109,634.84 is: 151,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,278.81 : 276,385.11 = 109,634.84 : x
  2. Step 2: Convert to fraction form
    200,278.81/276,385.11 = 109,634.84/x
  3. Step 3: Cross multiply
    200,278.81x = 276,385.11 × 109,634.84
  4. Step 4: Simplify right side
    200,278.81x = 30,301,436,136.87
  5. Step 5: Solve for x
    x = 30,301,436,136.87/200,278.81
  6. Step 6: Final answer
    x = 151,296.26

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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.