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Finding the Fourth Proportional to 374.56, 561.83 and 288.43

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Solution

The fourth proportional to 374.56, 561.83 and 288.43 is: 432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.56 : 561.83 = 288.43 : x
  2. Step 2: Convert to fraction form
    374.56/561.83 = 288.43/x
  3. Step 3: Cross multiply
    374.56x = 561.83 × 288.43
  4. Step 4: Simplify right side
    374.56x = 162,045.78
  5. Step 5: Solve for x
    x = 162,045.78/374.56
  6. Step 6: Final answer
    x = 432.63

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