Home / 324,934.00-487,355.81-100,301.76

Finding the Fourth Proportional to 324,934.00, 487,355.81 and 100,301.76

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Solution

The fourth proportional to 324,934.00, 487,355.81 and 100,301.76 is: 150,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,934.00 : 487,355.81 = 100,301.76 : x
  2. Step 2: Convert to fraction form
    324,934.00/487,355.81 = 100,301.76/x
  3. Step 3: Cross multiply
    324,934.00x = 487,355.81 × 100,301.76
  4. Step 4: Simplify right side
    324,934.00x = 48,882,644,987.72
  5. Step 5: Solve for x
    x = 48,882,644,987.72/324,934.00
  6. Step 6: Final answer
    x = 150,438.69

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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.