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Finding the Fourth Proportional to 324,971.64, 487,278.78 and 100,270.80

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Solution

The fourth proportional to 324,971.64, 487,278.78 and 100,270.80 is: 150,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,971.64 : 487,278.78 = 100,270.80 : x
  2. Step 2: Convert to fraction form
    324,971.64/487,278.78 = 100,270.80/x
  3. Step 3: Cross multiply
    324,971.64x = 487,278.78 × 100,270.80
  4. Step 4: Simplify right side
    324,971.64x = 48,859,833,093.62
  5. Step 5: Solve for x
    x = 48,859,833,093.62/324,971.64
  6. Step 6: Final answer
    x = 150,351.07

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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.