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Finding the Fourth Proportional to 456.47, 683.48 and 273.61

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Solution

The fourth proportional to 456.47, 683.48 and 273.61 is: 409.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.47 : 683.48 = 273.61 : x
  2. Step 2: Convert to fraction form
    456.47/683.48 = 273.61/x
  3. Step 3: Cross multiply
    456.47x = 683.48 × 273.61
  4. Step 4: Simplify right side
    456.47x = 187,002.18
  5. Step 5: Solve for x
    x = 187,002.18/456.47
  6. Step 6: Final answer
    x = 409.67

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