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Finding the Fourth Proportional to 257,606.40, 385,891.20 and 173,625.60

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Solution

The fourth proportional to 257,606.40, 385,891.20 and 173,625.60 is: 260,089.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,606.40 : 385,891.20 = 173,625.60 : x
  2. Step 2: Convert to fraction form
    257,606.40/385,891.20 = 173,625.60/x
  3. Step 3: Cross multiply
    257,606.40x = 385,891.20 × 173,625.60
  4. Step 4: Simplify right side
    257,606.40x = 67,000,591,134.72
  5. Step 5: Solve for x
    x = 67,000,591,134.72/257,606.40
  6. Step 6: Final answer
    x = 260,089.00

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