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Finding the Fourth Proportional to 324,992.60, 487,535.10 and 100,371.32

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Solution

The fourth proportional to 324,992.60, 487,535.10 and 100,371.32 is: 150,571.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,992.60 : 487,535.10 = 100,371.32 : x
  2. Step 2: Convert to fraction form
    324,992.60/487,535.10 = 100,371.32/x
  3. Step 3: Cross multiply
    324,992.60x = 487,535.10 × 100,371.32
  4. Step 4: Simplify right side
    324,992.60x = 48,934,541,533.33
  5. Step 5: Solve for x
    x = 48,934,541,533.33/324,992.60
  6. Step 6: Final answer
    x = 150,571.25

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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.