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Finding the Fourth Proportional to 259,969.90, 390,064.20 and 141,726.10

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Solution

The fourth proportional to 259,969.90, 390,064.20 and 141,726.10 is: 212,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,969.90 : 390,064.20 = 141,726.10 : x
  2. Step 2: Convert to fraction form
    259,969.90/390,064.20 = 141,726.10/x
  3. Step 3: Cross multiply
    259,969.90x = 390,064.20 × 141,726.10
  4. Step 4: Simplify right side
    259,969.90x = 55,282,277,815.62
  5. Step 5: Solve for x
    x = 55,282,277,815.62/259,969.90
  6. Step 6: Final answer
    x = 212,648.76

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