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Finding the Fourth Proportional to 324,809.86, 487,357.22 and 154,154.83

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Solution

The fourth proportional to 324,809.86, 487,357.22 and 154,154.83 is: 231,299.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,809.86 : 487,357.22 = 154,154.83 : x
  2. Step 2: Convert to fraction form
    324,809.86/487,357.22 = 154,154.83/x
  3. Step 3: Cross multiply
    324,809.86x = 487,357.22 × 154,154.83
  4. Step 4: Simplify right side
    324,809.86x = 75,128,469,398.37
  5. Step 5: Solve for x
    x = 75,128,469,398.37/324,809.86
  6. Step 6: Final answer
    x = 231,299.84

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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.