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Finding the Fourth Proportional to 200,380.05, 300,570.08 and 50,620.77

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Solution

The fourth proportional to 200,380.05, 300,570.08 and 50,620.77 is: 75,931.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,380.05 : 300,570.08 = 50,620.77 : x
  2. Step 2: Convert to fraction form
    200,380.05/300,570.08 = 50,620.77/x
  3. Step 3: Cross multiply
    200,380.05x = 300,570.08 × 50,620.77
  4. Step 4: Simplify right side
    200,380.05x = 15,215,088,635.46
  5. Step 5: Solve for x
    x = 15,215,088,635.46/200,380.05
  6. Step 6: Final answer
    x = 75,931.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.