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Finding the Fourth Proportional to 340,238.72, 510,431.88 and 103,575.28

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Solution

The fourth proportional to 340,238.72, 510,431.88 and 103,575.28 is: 155,385.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,238.72 : 510,431.88 = 103,575.28 : x
  2. Step 2: Convert to fraction form
    340,238.72/510,431.88 = 103,575.28/x
  3. Step 3: Cross multiply
    340,238.72x = 510,431.88 × 103,575.28
  4. Step 4: Simplify right side
    340,238.72x = 52,868,124,891.93
  5. Step 5: Solve for x
    x = 52,868,124,891.93/340,238.72
  6. Step 6: Final answer
    x = 155,385.39

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