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Finding the Fourth Proportional to 254,145.56, 381,211.85 and 67,158.68

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Solution

The fourth proportional to 254,145.56, 381,211.85 and 67,158.68 is: 100,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,145.56 : 381,211.85 = 67,158.68 : x
  2. Step 2: Convert to fraction form
    254,145.56/381,211.85 = 67,158.68/x
  3. Step 3: Cross multiply
    254,145.56x = 381,211.85 × 67,158.68
  4. Step 4: Simplify right side
    254,145.56x = 25,601,682,404.51
  5. Step 5: Solve for x
    x = 25,601,682,404.51/254,145.56
  6. Step 6: Final answer
    x = 100,736.30

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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.