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Finding the Fourth Proportional to 312,921.41, 469,194.66 and 99,597.17

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Solution

The fourth proportional to 312,921.41, 469,194.66 and 99,597.17 is: 149,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,921.41 : 469,194.66 = 99,597.17 : x
  2. Step 2: Convert to fraction form
    312,921.41/469,194.66 = 99,597.17/x
  3. Step 3: Cross multiply
    312,921.41x = 469,194.66 × 99,597.17
  4. Step 4: Simplify right side
    312,921.41x = 46,730,461,488.10
  5. Step 5: Solve for x
    x = 46,730,461,488.10/312,921.41
  6. Step 6: Final answer
    x = 149,336.10

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