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Finding the Fourth Proportional to 285,272.73, 393,688.67 and 157,948.31

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Solution

The fourth proportional to 285,272.73, 393,688.67 and 157,948.31 is: 217,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,272.73 : 393,688.67 = 157,948.31 : x
  2. Step 2: Convert to fraction form
    285,272.73/393,688.67 = 157,948.31/x
  3. Step 3: Cross multiply
    285,272.73x = 393,688.67 × 157,948.31
  4. Step 4: Simplify right side
    285,272.73x = 62,182,460,287.13
  5. Step 5: Solve for x
    x = 62,182,460,287.13/285,272.73
  6. Step 6: Final answer
    x = 217,975.48

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