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Finding the Fourth Proportional to 274,544.57, 379,009.08 and 172,626.09

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Solution

The fourth proportional to 274,544.57, 379,009.08 and 172,626.09 is: 238,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,544.57 : 379,009.08 = 172,626.09 : x
  2. Step 2: Convert to fraction form
    274,544.57/379,009.08 = 172,626.09/x
  3. Step 3: Cross multiply
    274,544.57x = 379,009.08 × 172,626.09
  4. Step 4: Simplify right side
    274,544.57x = 65,426,855,554.90
  5. Step 5: Solve for x
    x = 65,426,855,554.90/274,544.57
  6. Step 6: Final answer
    x = 238,310.51

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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.