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Finding the Fourth Proportional to 254,015.64, 381,198.42 and 87,803.64

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Solution

The fourth proportional to 254,015.64, 381,198.42 and 87,803.64 is: 131,765.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,015.64 : 381,198.42 = 87,803.64 : x
  2. Step 2: Convert to fraction form
    254,015.64/381,198.42 = 87,803.64/x
  3. Step 3: Cross multiply
    254,015.64x = 381,198.42 × 87,803.64
  4. Step 4: Simplify right side
    254,015.64x = 33,470,608,838.25
  5. Step 5: Solve for x
    x = 33,470,608,838.25/254,015.64
  6. Step 6: Final answer
    x = 131,765.94

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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.