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Finding the Fourth Proportional to 324,958.61, 487,259.31 and 100,257.73

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Solution

The fourth proportional to 324,958.61, 487,259.31 and 100,257.73 is: 150,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,958.61 : 487,259.31 = 100,257.73 : x
  2. Step 2: Convert to fraction form
    324,958.61/487,259.31 = 100,257.73/x
  3. Step 3: Cross multiply
    324,958.61x = 487,259.31 × 100,257.73
  4. Step 4: Simplify right side
    324,958.61x = 48,851,512,341.97
  5. Step 5: Solve for x
    x = 48,851,512,341.97/324,958.61
  6. Step 6: Final answer
    x = 150,331.49

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1.5x scale

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.