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Finding the Fourth Proportional to 246,393.65, 340,023.18 and 138,963.45

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Solution

The fourth proportional to 246,393.65, 340,023.18 and 138,963.45 is: 191,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,393.65 : 340,023.18 = 138,963.45 : x
  2. Step 2: Convert to fraction form
    246,393.65/340,023.18 = 138,963.45/x
  3. Step 3: Cross multiply
    246,393.65x = 340,023.18 × 138,963.45
  4. Step 4: Simplify right side
    246,393.65x = 47,250,795,968.97
  5. Step 5: Solve for x
    x = 47,250,795,968.97/246,393.65
  6. Step 6: Final answer
    x = 191,769.53

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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.