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Finding the Fourth Proportional to 280,069.28, 386,491.70 and 152,744.84

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Solution

The fourth proportional to 280,069.28, 386,491.70 and 152,744.84 is: 210,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,069.28 : 386,491.70 = 152,744.84 : x
  2. Step 2: Convert to fraction form
    280,069.28/386,491.70 = 152,744.84/x
  3. Step 3: Cross multiply
    280,069.28x = 386,491.70 × 152,744.84
  4. Step 4: Simplify right side
    280,069.28x = 59,034,612,877.83
  5. Step 5: Solve for x
    x = 59,034,612,877.83/280,069.28
  6. Step 6: Final answer
    x = 210,785.75

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