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Finding the Fourth Proportional to 493.76, 740.96 and 277.76

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Solution

The fourth proportional to 493.76, 740.96 and 277.76 is: 416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.76 : 740.96 = 277.76 : x
  2. Step 2: Convert to fraction form
    493.76/740.96 = 277.76/x
  3. Step 3: Cross multiply
    493.76x = 740.96 × 277.76
  4. Step 4: Simplify right side
    493.76x = 205,809.05
  5. Step 5: Solve for x
    x = 205,809.05/493.76
  6. Step 6: Final answer
    x = 416.82

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