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Finding the Fourth Proportional to 246,398.90, 340,030.00 and 138,968.60

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Solution

The fourth proportional to 246,398.90, 340,030.00 and 138,968.60 is: 191,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,398.90 : 340,030.00 = 138,968.60 : x
  2. Step 2: Convert to fraction form
    246,398.90/340,030.00 = 138,968.60/x
  3. Step 3: Cross multiply
    246,398.90x = 340,030.00 × 138,968.60
  4. Step 4: Simplify right side
    246,398.90x = 47,253,491,531.56
  5. Step 5: Solve for x
    x = 47,253,491,531.56/246,398.90
  6. Step 6: Final answer
    x = 191,776.39

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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.