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Finding the Fourth Proportional to 324,277.44, 486,417.60 and 99,636

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Solution

The fourth proportional to 324,277.44, 486,417.60 and 99,636 is: 149,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,277.44 : 486,417.60 = 99,636 : x
  2. Step 2: Convert to fraction form
    324,277.44/486,417.60 = 99,636/x
  3. Step 3: Cross multiply
    324,277.44x = 486,417.60 × 99,636
  4. Step 4: Simplify right side
    324,277.44x = 48,464,703,993.60
  5. Step 5: Solve for x
    x = 48,464,703,993.60/324,277.44
  6. Step 6: Final answer
    x = 149,454.44

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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.