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Finding the Fourth Proportional to 210,364.43, 315,359.30 and 77,213.79

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Solution

The fourth proportional to 210,364.43, 315,359.30 and 77,213.79 is: 115,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,364.43 : 315,359.30 = 77,213.79 : x
  2. Step 2: Convert to fraction form
    210,364.43/315,359.30 = 77,213.79/x
  3. Step 3: Cross multiply
    210,364.43x = 315,359.30 × 77,213.79
  4. Step 4: Simplify right side
    210,364.43x = 24,350,086,957.78
  5. Step 5: Solve for x
    x = 24,350,086,957.78/210,364.43
  6. Step 6: Final answer
    x = 115,751.92

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