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Finding the Fourth Proportional to 248,257.64, 372,387.23 and 68,345.47

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Solution

The fourth proportional to 248,257.64, 372,387.23 and 68,345.47 is: 102,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,257.64 : 372,387.23 = 68,345.47 : x
  2. Step 2: Convert to fraction form
    248,257.64/372,387.23 = 68,345.47/x
  3. Step 3: Cross multiply
    248,257.64x = 372,387.23 × 68,345.47
  4. Step 4: Simplify right side
    248,257.64x = 25,450,978,394.41
  5. Step 5: Solve for x
    x = 25,450,978,394.41/248,257.64
  6. Step 6: Final answer
    x = 102,518.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.