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Finding the Fourth Proportional to 274,801, 379,225.38 and 155,569

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Solution

The fourth proportional to 274,801, 379,225.38 and 155,569 is: 214,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,801 : 379,225.38 = 155,569 : x
  2. Step 2: Convert to fraction form
    274,801/379,225.38 = 155,569/x
  3. Step 3: Cross multiply
    274,801x = 379,225.38 × 155,569
  4. Step 4: Simplify right side
    274,801x = 58,995,713,141.22
  5. Step 5: Solve for x
    x = 58,995,713,141.22/274,801
  6. Step 6: Final answer
    x = 214,685.22

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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.