Home / 254,170.96-381,259.18-76,679.51

Finding the Fourth Proportional to 254,170.96, 381,259.18 and 76,679.51

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Solution

The fourth proportional to 254,170.96, 381,259.18 and 76,679.51 is: 115,020.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,170.96 : 381,259.18 = 76,679.51 : x
  2. Step 2: Convert to fraction form
    254,170.96/381,259.18 = 76,679.51/x
  3. Step 3: Cross multiply
    254,170.96x = 381,259.18 × 76,679.51
  4. Step 4: Simplify right side
    254,170.96x = 29,234,767,105.40
  5. Step 5: Solve for x
    x = 29,234,767,105.40/254,170.96
  6. Step 6: Final answer
    x = 115,020.09

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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.