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Finding the Fourth Proportional to 402,222.80, 603,465.42 and 191,833.40

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Solution

The fourth proportional to 402,222.80, 603,465.42 and 191,833.40 is: 287,812.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,222.80 : 603,465.42 = 191,833.40 : x
  2. Step 2: Convert to fraction form
    402,222.80/603,465.42 = 191,833.40/x
  3. Step 3: Cross multiply
    402,222.80x = 603,465.42 × 191,833.40
  4. Step 4: Simplify right side
    402,222.80x = 115,764,823,301.03
  5. Step 5: Solve for x
    x = 115,764,823,301.03/402,222.80
  6. Step 6: Final answer
    x = 287,812.68

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