Home / 238,520.25-328,960.78-161,913.42

Finding the Fourth Proportional to 238,520.25, 328,960.78 and 161,913.42

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Solution

The fourth proportional to 238,520.25, 328,960.78 and 161,913.42 is: 223,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,520.25 : 328,960.78 = 161,913.42 : x
  2. Step 2: Convert to fraction form
    238,520.25/328,960.78 = 161,913.42/x
  3. Step 3: Cross multiply
    238,520.25x = 328,960.78 × 161,913.42
  4. Step 4: Simplify right side
    238,520.25x = 53,263,164,530.88
  5. Step 5: Solve for x
    x = 53,263,164,530.88/238,520.25
  6. Step 6: Final answer
    x = 223,306.68

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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.