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Finding the Fourth Proportional to 340,235.40, 469,517.88 and 212,981.16

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Solution

The fourth proportional to 340,235.40, 469,517.88 and 212,981.16 is: 293,909.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,235.40 : 469,517.88 = 212,981.16 : x
  2. Step 2: Convert to fraction form
    340,235.40/469,517.88 = 212,981.16/x
  3. Step 3: Cross multiply
    340,235.40x = 469,517.88 × 212,981.16
  4. Step 4: Simplify right side
    340,235.40x = 99,998,462,723.14
  5. Step 5: Solve for x
    x = 99,998,462,723.14/340,235.40
  6. Step 6: Final answer
    x = 293,909.64

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