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Finding the Fourth Proportional to 324,696.87, 487,109.09 and 100,019.07

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Solution

The fourth proportional to 324,696.87, 487,109.09 and 100,019.07 is: 150,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,696.87 : 487,109.09 = 100,019.07 : x
  2. Step 2: Convert to fraction form
    324,696.87/487,109.09 = 100,019.07/x
  3. Step 3: Cross multiply
    324,696.87x = 487,109.09 × 100,019.07
  4. Step 4: Simplify right side
    324,696.87x = 48,720,198,420.39
  5. Step 5: Solve for x
    x = 48,720,198,420.39/324,696.87
  6. Step 6: Final answer
    x = 150,048.25

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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.