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Finding the Fourth Proportional to 432.93, 649.44 and 144.39

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Solution

The fourth proportional to 432.93, 649.44 and 144.39 is: 216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.93 : 649.44 = 144.39 : x
  2. Step 2: Convert to fraction form
    432.93/649.44 = 144.39/x
  3. Step 3: Cross multiply
    432.93x = 649.44 × 144.39
  4. Step 4: Simplify right side
    432.93x = 93,772.64
  5. Step 5: Solve for x
    x = 93,772.64/432.93
  6. Step 6: Final answer
    x = 216.60

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