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Finding the Fourth Proportional to 342.82, 514.24 and 99.32

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Solution

The fourth proportional to 342.82, 514.24 and 99.32 is: 148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.82 : 514.24 = 99.32 : x
  2. Step 2: Convert to fraction form
    342.82/514.24 = 99.32/x
  3. Step 3: Cross multiply
    342.82x = 514.24 × 99.32
  4. Step 4: Simplify right side
    342.82x = 51,074.32
  5. Step 5: Solve for x
    x = 51,074.32/342.82
  6. Step 6: Final answer
    x = 148.98

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