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Finding the Fourth Proportional to 260,488.98, 390,721.61 and 108,623.39

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Solution

The fourth proportional to 260,488.98, 390,721.61 and 108,623.39 is: 162,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,488.98 : 390,721.61 = 108,623.39 : x
  2. Step 2: Convert to fraction form
    260,488.98/390,721.61 = 108,623.39/x
  3. Step 3: Cross multiply
    260,488.98x = 390,721.61 × 108,623.39
  4. Step 4: Simplify right side
    260,488.98x = 42,441,503,327.73
  5. Step 5: Solve for x
    x = 42,441,503,327.73/260,488.98
  6. Step 6: Final answer
    x = 162,930.13

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