Home / 408,931.20-612,636.48-222,099.84

Finding the Fourth Proportional to 408,931.20, 612,636.48 and 222,099.84

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Solution

The fourth proportional to 408,931.20, 612,636.48 and 222,099.84 is: 332,736.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,931.20 : 612,636.48 = 222,099.84 : x
  2. Step 2: Convert to fraction form
    408,931.20/612,636.48 = 222,099.84/x
  3. Step 3: Cross multiply
    408,931.20x = 612,636.48 × 222,099.84
  4. Step 4: Simplify right side
    408,931.20x = 136,066,464,186.16
  5. Step 5: Solve for x
    x = 136,066,464,186.16/408,931.20
  6. Step 6: Final answer
    x = 332,736.81

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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.