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Finding the Fourth Proportional to 372.76, 559.20 and 156.35

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Solution

The fourth proportional to 372.76, 559.20 and 156.35 is: 234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.76 : 559.20 = 156.35 : x
  2. Step 2: Convert to fraction form
    372.76/559.20 = 156.35/x
  3. Step 3: Cross multiply
    372.76x = 559.20 × 156.35
  4. Step 4: Simplify right side
    372.76x = 87,430.92
  5. Step 5: Solve for x
    x = 87,430.92/372.76
  6. Step 6: Final answer
    x = 234.55

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