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Finding the Fourth Proportional to 220,508.64, 330,872.30 and 87,385.95

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Solution

The fourth proportional to 220,508.64, 330,872.30 and 87,385.95 is: 131,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,508.64 : 330,872.30 = 87,385.95 : x
  2. Step 2: Convert to fraction form
    220,508.64/330,872.30 = 87,385.95/x
  3. Step 3: Cross multiply
    220,508.64x = 330,872.30 × 87,385.95
  4. Step 4: Simplify right side
    220,508.64x = 28,913,590,264.19
  5. Step 5: Solve for x
    x = 28,913,590,264.19/220,508.64
  6. Step 6: Final answer
    x = 131,122.26

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