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Finding the Fourth Proportional to 246,049.49, 339,549.48 and 138,621.21

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Solution

The fourth proportional to 246,049.49, 339,549.48 and 138,621.21 is: 191,297.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,049.49 : 339,549.48 = 138,621.21 : x
  2. Step 2: Convert to fraction form
    246,049.49/339,549.48 = 138,621.21/x
  3. Step 3: Cross multiply
    246,049.49x = 339,549.48 × 138,621.21
  4. Step 4: Simplify right side
    246,049.49x = 47,068,759,772.47
  5. Step 5: Solve for x
    x = 47,068,759,772.47/246,049.49
  6. Step 6: Final answer
    x = 191,297.94

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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.