Home / 324,939.32-487,221.36-100,239.42

Finding the Fourth Proportional to 324,939.32, 487,221.36 and 100,239.42

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Solution

The fourth proportional to 324,939.32, 487,221.36 and 100,239.42 is: 150,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,939.32 : 487,221.36 = 100,239.42 : x
  2. Step 2: Convert to fraction form
    324,939.32/487,221.36 = 100,239.42/x
  3. Step 3: Cross multiply
    324,939.32x = 487,221.36 × 100,239.42
  4. Step 4: Simplify right side
    324,939.32x = 48,838,786,538.01
  5. Step 5: Solve for x
    x = 48,838,786,538.01/324,939.32
  6. Step 6: Final answer
    x = 150,301.25

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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.