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Finding the Fourth Proportional to 518.55, 715.68 and 371.67

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Solution

The fourth proportional to 518.55, 715.68 and 371.67 is: 512.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.55 : 715.68 = 371.67 : x
  2. Step 2: Convert to fraction form
    518.55/715.68 = 371.67/x
  3. Step 3: Cross multiply
    518.55x = 715.68 × 371.67
  4. Step 4: Simplify right side
    518.55x = 265,996.79
  5. Step 5: Solve for x
    x = 265,996.79/518.55
  6. Step 6: Final answer
    x = 512.96

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