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Finding the Fourth Proportional to 278,254.20, 383,990.76 and 157,392.88

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Solution

The fourth proportional to 278,254.20, 383,990.76 and 157,392.88 is: 217,202.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,254.20 : 383,990.76 = 157,392.88 : x
  2. Step 2: Convert to fraction form
    278,254.20/383,990.76 = 157,392.88/x
  3. Step 3: Cross multiply
    278,254.20x = 383,990.76 × 157,392.88
  4. Step 4: Simplify right side
    278,254.20x = 60,437,411,609.79
  5. Step 5: Solve for x
    x = 60,437,411,609.79/278,254.20
  6. Step 6: Final answer
    x = 217,202.15

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