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Finding the Fourth Proportional to 324,956.61, 487,256.31 and 100,255.73

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Solution

The fourth proportional to 324,956.61, 487,256.31 and 100,255.73 is: 150,328.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,956.61 : 487,256.31 = 100,255.73 : x
  2. Step 2: Convert to fraction form
    324,956.61/487,256.31 = 100,255.73/x
  3. Step 3: Cross multiply
    324,956.61x = 487,256.31 × 100,255.73
  4. Step 4: Simplify right side
    324,956.61x = 48,850,234,619.87
  5. Step 5: Solve for x
    x = 48,850,234,619.87/324,956.61
  6. Step 6: Final answer
    x = 150,328.48

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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.