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Finding the Fourth Proportional to 245,586.09, 338,905.43 and 138,156.09

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Solution

The fourth proportional to 245,586.09, 338,905.43 and 138,156.09 is: 190,653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,586.09 : 338,905.43 = 138,156.09 : x
  2. Step 2: Convert to fraction form
    245,586.09/338,905.43 = 138,156.09/x
  3. Step 3: Cross multiply
    245,586.09x = 338,905.43 × 138,156.09
  4. Step 4: Simplify right side
    245,586.09x = 46,821,848,397.79
  5. Step 5: Solve for x
    x = 46,821,848,397.79/245,586.09
  6. Step 6: Final answer
    x = 190,653.50

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