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Finding the Fourth Proportional to 254,819.88, 382,335.12 and 128,392.56

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Solution

The fourth proportional to 254,819.88, 382,335.12 and 128,392.56 is: 192,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,819.88 : 382,335.12 = 128,392.56 : x
  2. Step 2: Convert to fraction form
    254,819.88/382,335.12 = 128,392.56/x
  3. Step 3: Cross multiply
    254,819.88x = 382,335.12 × 128,392.56
  4. Step 4: Simplify right side
    254,819.88x = 49,088,984,834.71
  5. Step 5: Solve for x
    x = 49,088,984,834.71/254,819.88
  6. Step 6: Final answer
    x = 192,641.90

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