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Finding the Fourth Proportional to 246,387.31, 340,026.06 and 138,955.12

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Solution

The fourth proportional to 246,387.31, 340,026.06 and 138,955.12 is: 191,764.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,387.31 : 340,026.06 = 138,955.12 : x
  2. Step 2: Convert to fraction form
    246,387.31/340,026.06 = 138,955.12/x
  3. Step 3: Cross multiply
    246,387.31x = 340,026.06 × 138,955.12
  4. Step 4: Simplify right side
    246,387.31x = 47,248,361,970.43
  5. Step 5: Solve for x
    x = 47,248,361,970.43/246,387.31
  6. Step 6: Final answer
    x = 191,764.59

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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.