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Finding the Fourth Proportional to 653.08, 978.83 and 242

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Solution

The fourth proportional to 653.08, 978.83 and 242 is: 362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.08 : 978.83 = 242 : x
  2. Step 2: Convert to fraction form
    653.08/978.83 = 242/x
  3. Step 3: Cross multiply
    653.08x = 978.83 × 242
  4. Step 4: Simplify right side
    653.08x = 236,875.65
  5. Step 5: Solve for x
    x = 236,875.65/653.08
  6. Step 6: Final answer
    x = 362.71

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