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Finding the Fourth Proportional to 324,383.36, 486,621.44 and 99,762.56

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Solution

The fourth proportional to 324,383.36, 486,621.44 and 99,762.56 is: 149,658.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,383.36 : 486,621.44 = 99,762.56 : x
  2. Step 2: Convert to fraction form
    324,383.36/486,621.44 = 99,762.56/x
  3. Step 3: Cross multiply
    324,383.36x = 486,621.44 × 99,762.56
  4. Step 4: Simplify right side
    324,383.36x = 48,546,600,605.29
  5. Step 5: Solve for x
    x = 48,546,600,605.29/324,383.36
  6. Step 6: Final answer
    x = 149,658.11

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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.