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Finding the Fourth Proportional to 246,381.32, 339,982.80 and 138,968.12

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Solution

The fourth proportional to 246,381.32, 339,982.80 and 138,968.12 is: 191,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,381.32 : 339,982.80 = 138,968.12 : x
  2. Step 2: Convert to fraction form
    246,381.32/339,982.80 = 138,968.12/x
  3. Step 3: Cross multiply
    246,381.32x = 339,982.80 × 138,968.12
  4. Step 4: Simplify right side
    246,381.32x = 47,246,770,548.34
  5. Step 5: Solve for x
    x = 47,246,770,548.34/246,381.32
  6. Step 6: Final answer
    x = 191,762.79

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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.