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Finding the Fourth Proportional to 407.00, 561.53 and 249.47

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Solution

The fourth proportional to 407.00, 561.53 and 249.47 is: 344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.00 : 561.53 = 249.47 : x
  2. Step 2: Convert to fraction form
    407.00/561.53 = 249.47/x
  3. Step 3: Cross multiply
    407.00x = 561.53 × 249.47
  4. Step 4: Simplify right side
    407.00x = 140,080.83
  5. Step 5: Solve for x
    x = 140,080.83/407.00
  6. Step 6: Final answer
    x = 344.18

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