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Finding the Fourth Proportional to 269,270.70, 403,906.05 and 185,289.90

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Solution

The fourth proportional to 269,270.70, 403,906.05 and 185,289.90 is: 277,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,270.70 : 403,906.05 = 185,289.90 : x
  2. Step 2: Convert to fraction form
    269,270.70/403,906.05 = 185,289.90/x
  3. Step 3: Cross multiply
    269,270.70x = 403,906.05 × 185,289.90
  4. Step 4: Simplify right side
    269,270.70x = 74,839,711,613.90
  5. Step 5: Solve for x
    x = 74,839,711,613.90/269,270.70
  6. Step 6: Final answer
    x = 277,934.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.