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Finding the Fourth Proportional to 281,052.86, 387,859.10 and 153,728.45

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Solution

The fourth proportional to 281,052.86, 387,859.10 and 153,728.45 is: 212,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,052.86 : 387,859.10 = 153,728.45 : x
  2. Step 2: Convert to fraction form
    281,052.86/387,859.10 = 153,728.45/x
  3. Step 3: Cross multiply
    281,052.86x = 387,859.10 × 153,728.45
  4. Step 4: Simplify right side
    281,052.86x = 59,624,978,261.40
  5. Step 5: Solve for x
    x = 59,624,978,261.40/281,052.86
  6. Step 6: Final answer
    x = 212,148.63

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