Home / 324,601.20-486,815.40-99,961.20

Finding the Fourth Proportional to 324,601.20, 486,815.40 and 99,961.20

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Solution

The fourth proportional to 324,601.20, 486,815.40 and 99,961.20 is: 149,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,601.20 : 486,815.40 = 99,961.20 : x
  2. Step 2: Convert to fraction form
    324,601.20/486,815.40 = 99,961.20/x
  3. Step 3: Cross multiply
    324,601.20x = 486,815.40 × 99,961.20
  4. Step 4: Simplify right side
    324,601.20x = 48,662,651,562.48
  5. Step 5: Solve for x
    x = 48,662,651,562.48/324,601.20
  6. Step 6: Final answer
    x = 149,915.19

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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.