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Finding the Fourth Proportional to 342.04, 512.99 and 98.57

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Solution

The fourth proportional to 342.04, 512.99 and 98.57 is: 147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.04 : 512.99 = 98.57 : x
  2. Step 2: Convert to fraction form
    342.04/512.99 = 98.57/x
  3. Step 3: Cross multiply
    342.04x = 512.99 × 98.57
  4. Step 4: Simplify right side
    342.04x = 50,565.42
  5. Step 5: Solve for x
    x = 50,565.42/342.04
  6. Step 6: Final answer
    x = 147.83

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