Home / 324,830.36-487,298.08-100,138.22

Finding the Fourth Proportional to 324,830.36, 487,298.08 and 100,138.22

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Solution

The fourth proportional to 324,830.36, 487,298.08 and 100,138.22 is: 150,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,830.36 : 487,298.08 = 100,138.22 : x
  2. Step 2: Convert to fraction form
    324,830.36/487,298.08 = 100,138.22/x
  3. Step 3: Cross multiply
    324,830.36x = 487,298.08 × 100,138.22
  4. Step 4: Simplify right side
    324,830.36x = 48,797,162,340.62
  5. Step 5: Solve for x
    x = 48,797,162,340.62/324,830.36
  6. Step 6: Final answer
    x = 150,223.53

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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.