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Finding the Fourth Proportional to 382,140.20, 573,137.40 and 115,909.40

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Solution

The fourth proportional to 382,140.20, 573,137.40 and 115,909.40 is: 173,841.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,140.20 : 573,137.40 = 115,909.40 : x
  2. Step 2: Convert to fraction form
    382,140.20/573,137.40 = 115,909.40/x
  3. Step 3: Cross multiply
    382,140.20x = 573,137.40 × 115,909.40
  4. Step 4: Simplify right side
    382,140.20x = 66,432,012,151.56
  5. Step 5: Solve for x
    x = 66,432,012,151.56/382,140.20
  6. Step 6: Final answer
    x = 173,841.99

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