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Finding the Fourth Proportional to 438,068.52, 657,183.78 and 138,624.48

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Solution

The fourth proportional to 438,068.52, 657,183.78 and 138,624.48 is: 207,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,068.52 : 657,183.78 = 138,624.48 : x
  2. Step 2: Convert to fraction form
    438,068.52/657,183.78 = 138,624.48/x
  3. Step 3: Cross multiply
    438,068.52x = 657,183.78 × 138,624.48
  4. Step 4: Simplify right side
    438,068.52x = 91,101,759,766.93
  5. Step 5: Solve for x
    x = 91,101,759,766.93/438,068.52
  6. Step 6: Final answer
    x = 207,962.35

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