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Finding the Fourth Proportional to 209,322.61, 288,872.81 and 119,915.89

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Solution

The fourth proportional to 209,322.61, 288,872.81 and 119,915.89 is: 165,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,322.61 : 288,872.81 = 119,915.89 : x
  2. Step 2: Convert to fraction form
    209,322.61/288,872.81 = 119,915.89/x
  3. Step 3: Cross multiply
    209,322.61x = 288,872.81 × 119,915.89
  4. Step 4: Simplify right side
    209,322.61x = 34,640,439,508.37
  5. Step 5: Solve for x
    x = 34,640,439,508.37/209,322.61
  6. Step 6: Final answer
    x = 165,488.28

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