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Finding the Fourth Proportional to 272,872.99, 408,553.75 and 139,465.99

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Solution

The fourth proportional to 272,872.99, 408,553.75 and 139,465.99 is: 208,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,872.99 : 408,553.75 = 139,465.99 : x
  2. Step 2: Convert to fraction form
    272,872.99/408,553.75 = 139,465.99/x
  3. Step 3: Cross multiply
    272,872.99x = 408,553.75 × 139,465.99
  4. Step 4: Simplify right side
    272,872.99x = 56,979,353,211.96
  5. Step 5: Solve for x
    x = 56,979,353,211.96/272,872.99
  6. Step 6: Final answer
    x = 208,812.73

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