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Finding the Fourth Proportional to 200,019.75, 276,015.92 and 109,358.79

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Solution

The fourth proportional to 200,019.75, 276,015.92 and 109,358.79 is: 150,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,019.75 : 276,015.92 = 109,358.79 : x
  2. Step 2: Convert to fraction form
    200,019.75/276,015.92 = 109,358.79/x
  3. Step 3: Cross multiply
    200,019.75x = 276,015.92 × 109,358.79
  4. Step 4: Simplify right side
    200,019.75x = 30,184,766,485.14
  5. Step 5: Solve for x
    x = 30,184,766,485.14/200,019.75
  6. Step 6: Final answer
    x = 150,908.93

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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.