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Finding the Fourth Proportional to 115,492, 173,238 and 27,940

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Solution

The fourth proportional to 115,492, 173,238 and 27,940 is: 41,910

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,492 : 173,238 = 27,940 : x
  2. Step 2: Convert to fraction form
    115,492/173,238 = 27,940/x
  3. Step 3: Cross multiply
    115,492x = 173,238 × 27,940
  4. Step 4: Simplify right side
    115,492x = 4,840,269,720
  5. Step 5: Solve for x
    x = 4,840,269,720/115,492
  6. Step 6: Final answer
    x = 41,910

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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.