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Finding the Fourth Proportional to 307,009.80, 423,644.58 and 171,029.88

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Solution

The fourth proportional to 307,009.80, 423,644.58 and 171,029.88 is: 236,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,009.80 : 423,644.58 = 171,029.88 : x
  2. Step 2: Convert to fraction form
    307,009.80/423,644.58 = 171,029.88/x
  3. Step 3: Cross multiply
    307,009.80x = 423,644.58 × 171,029.88
  4. Step 4: Simplify right side
    307,009.80x = 72,455,881,680.05
  5. Step 5: Solve for x
    x = 72,455,881,680.05/307,009.80
  6. Step 6: Final answer
    x = 236,005.11

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