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Finding the Fourth Proportional to 438,650.73, 605,304.23 and 247,682.97

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Solution

The fourth proportional to 438,650.73, 605,304.23 and 247,682.97 is: 341,783.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,650.73 : 605,304.23 = 247,682.97 : x
  2. Step 2: Convert to fraction form
    438,650.73/605,304.23 = 247,682.97/x
  3. Step 3: Cross multiply
    438,650.73x = 605,304.23 × 247,682.97
  4. Step 4: Simplify right side
    438,650.73x = 149,923,548,201.55
  5. Step 5: Solve for x
    x = 149,923,548,201.55/438,650.73
  6. Step 6: Final answer
    x = 341,783.42

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1.5x scale

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.