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Finding the Fourth Proportional to 274,751.52, 379,131.60 and 155,519.52

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Solution

The fourth proportional to 274,751.52, 379,131.60 and 155,519.52 is: 214,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,751.52 : 379,131.60 = 155,519.52 : x
  2. Step 2: Convert to fraction form
    274,751.52/379,131.60 = 155,519.52/x
  3. Step 3: Cross multiply
    274,751.52x = 379,131.60 × 155,519.52
  4. Step 4: Simplify right side
    274,751.52x = 58,962,364,448.83
  5. Step 5: Solve for x
    x = 58,962,364,448.83/274,751.52
  6. Step 6: Final answer
    x = 214,602.51

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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.