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Finding the Fourth Proportional to 508.83, 763.23 and 143.60

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Solution

The fourth proportional to 508.83, 763.23 and 143.60 is: 215.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.83 : 763.23 = 143.60 : x
  2. Step 2: Convert to fraction form
    508.83/763.23 = 143.60/x
  3. Step 3: Cross multiply
    508.83x = 763.23 × 143.60
  4. Step 4: Simplify right side
    508.83x = 109,596.55
  5. Step 5: Solve for x
    x = 109,596.55/508.83
  6. Step 6: Final answer
    x = 215.39

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