Home / 254,120.28-381,183.40-76,628.84

Finding the Fourth Proportional to 254,120.28, 381,183.40 and 76,628.84

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Solution

The fourth proportional to 254,120.28, 381,183.40 and 76,628.84 is: 114,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,120.28 : 381,183.40 = 76,628.84 : x
  2. Step 2: Convert to fraction form
    254,120.28/381,183.40 = 76,628.84/x
  3. Step 3: Cross multiply
    254,120.28x = 381,183.40 × 76,628.84
  4. Step 4: Simplify right side
    254,120.28x = 29,209,641,769.26
  5. Step 5: Solve for x
    x = 29,209,641,769.26/254,120.28
  6. Step 6: Final answer
    x = 114,944.16

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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.