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Finding the Fourth Proportional to 477.77, 716.63 and 135.77

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Solution

The fourth proportional to 477.77, 716.63 and 135.77 is: 203.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.77 : 716.63 = 135.77 : x
  2. Step 2: Convert to fraction form
    477.77/716.63 = 135.77/x
  3. Step 3: Cross multiply
    477.77x = 716.63 × 135.77
  4. Step 4: Simplify right side
    477.77x = 97,293.61
  5. Step 5: Solve for x
    x = 97,293.61/477.77
  6. Step 6: Final answer
    x = 203.64

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