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Finding the Fourth Proportional to 510.12, 765.18 and 144.88

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Solution

The fourth proportional to 510.12, 765.18 and 144.88 is: 217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.12 : 765.18 = 144.88 : x
  2. Step 2: Convert to fraction form
    510.12/765.18 = 144.88/x
  3. Step 3: Cross multiply
    510.12x = 765.18 × 144.88
  4. Step 4: Simplify right side
    510.12x = 110,857.37
  5. Step 5: Solve for x
    x = 110,857.37/510.12
  6. Step 6: Final answer
    x = 217.32

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