Home / 254,440.20-381,806.10-96,781.80

Finding the Fourth Proportional to 254,440.20, 381,806.10 and 96,781.80

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Solution

The fourth proportional to 254,440.20, 381,806.10 and 96,781.80 is: 145,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,440.20 : 381,806.10 = 96,781.80 : x
  2. Step 2: Convert to fraction form
    254,440.20/381,806.10 = 96,781.80/x
  3. Step 3: Cross multiply
    254,440.20x = 381,806.10 × 96,781.80
  4. Step 4: Simplify right side
    254,440.20x = 36,951,881,608.98
  5. Step 5: Solve for x
    x = 36,951,881,608.98/254,440.20
  6. Step 6: Final answer
    x = 145,228.16

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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.