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Finding the Fourth Proportional to 280,628.16, 420,942.24 and 103,058.34

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Solution

The fourth proportional to 280,628.16, 420,942.24 and 103,058.34 is: 154,587.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,628.16 : 420,942.24 = 103,058.34 : x
  2. Step 2: Convert to fraction form
    280,628.16/420,942.24 = 103,058.34/x
  3. Step 3: Cross multiply
    280,628.16x = 420,942.24 × 103,058.34
  4. Step 4: Simplify right side
    280,628.16x = 43,381,608,490.28
  5. Step 5: Solve for x
    x = 43,381,608,490.28/280,628.16
  6. Step 6: Final answer
    x = 154,587.51

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