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Finding the Fourth Proportional to 251,611.80, 347,216.67 and 138,434.28

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Solution

The fourth proportional to 251,611.80, 347,216.67 and 138,434.28 is: 191,035.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,611.80 : 347,216.67 = 138,434.28 : x
  2. Step 2: Convert to fraction form
    251,611.80/347,216.67 = 138,434.28/x
  3. Step 3: Cross multiply
    251,611.80x = 347,216.67 × 138,434.28
  4. Step 4: Simplify right side
    251,611.80x = 48,066,689,715.45
  5. Step 5: Solve for x
    x = 48,066,689,715.45/251,611.80
  6. Step 6: Final answer
    x = 191,035.12

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