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Finding the Fourth Proportional to 300,123.80, 414,206.58 and 172,824.20

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Solution

The fourth proportional to 300,123.80, 414,206.58 and 172,824.20 is: 238,517.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,123.80 : 414,206.58 = 172,824.20 : x
  2. Step 2: Convert to fraction form
    300,123.80/414,206.58 = 172,824.20/x
  3. Step 3: Cross multiply
    300,123.80x = 414,206.58 × 172,824.20
  4. Step 4: Simplify right side
    300,123.80x = 71,584,920,823.24
  5. Step 5: Solve for x
    x = 71,584,920,823.24/300,123.80
  6. Step 6: Final answer
    x = 238,517.97

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