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Finding the Fourth Proportional to 229,318.12, 315,894.18 and 195,217.12

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Solution

The fourth proportional to 229,318.12, 315,894.18 and 195,217.12 is: 268,918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,318.12 : 315,894.18 = 195,217.12 : x
  2. Step 2: Convert to fraction form
    229,318.12/315,894.18 = 195,217.12/x
  3. Step 3: Cross multiply
    229,318.12x = 315,894.18 × 195,217.12
  4. Step 4: Simplify right side
    229,318.12x = 61,667,952,044.36
  5. Step 5: Solve for x
    x = 61,667,952,044.36/229,318.12
  6. Step 6: Final answer
    x = 268,918.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.