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Finding the Fourth Proportional to 246,399.44, 340,030.31 and 138,968.80

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Solution

The fourth proportional to 246,399.44, 340,030.31 and 138,968.80 is: 191,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,399.44 : 340,030.31 = 138,968.80 : x
  2. Step 2: Convert to fraction form
    246,399.44/340,030.31 = 138,968.80/x
  3. Step 3: Cross multiply
    246,399.44x = 340,030.31 × 138,968.80
  4. Step 4: Simplify right side
    246,399.44x = 47,253,602,599.41
  5. Step 5: Solve for x
    x = 47,253,602,599.41/246,399.44
  6. Step 6: Final answer
    x = 191,776.42

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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.