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Finding the Fourth Proportional to 261,656.20, 392,921.70 and 173,301.40

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Solution

The fourth proportional to 261,656.20, 392,921.70 and 173,301.40 is: 260,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,656.20 : 392,921.70 = 173,301.40 : x
  2. Step 2: Convert to fraction form
    261,656.20/392,921.70 = 173,301.40/x
  3. Step 3: Cross multiply
    261,656.20x = 392,921.70 × 173,301.40
  4. Step 4: Simplify right side
    261,656.20x = 68,093,880,700.38
  5. Step 5: Solve for x
    x = 68,093,880,700.38/261,656.20
  6. Step 6: Final answer
    x = 260,241.80

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