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Finding the Fourth Proportional to 312,296.55, 468,374.71 and 143,654.91

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Solution

The fourth proportional to 312,296.55, 468,374.71 and 143,654.91 is: 215,450.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,296.55 : 468,374.71 = 143,654.91 : x
  2. Step 2: Convert to fraction form
    312,296.55/468,374.71 = 143,654.91/x
  3. Step 3: Cross multiply
    312,296.55x = 468,374.71 × 143,654.91
  4. Step 4: Simplify right side
    312,296.55x = 67,284,326,811.33
  5. Step 5: Solve for x
    x = 67,284,326,811.33/312,296.55
  6. Step 6: Final answer
    x = 215,450.11

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