Home / 281,790.60-421,984.70-197,154.80

Finding the Fourth Proportional to 281,790.60, 421,984.70 and 197,154.80

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Solution

The fourth proportional to 281,790.60, 421,984.70 and 197,154.80 is: 295,241.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,790.60 : 421,984.70 = 197,154.80 : x
  2. Step 2: Convert to fraction form
    281,790.60/421,984.70 = 197,154.80/x
  3. Step 3: Cross multiply
    281,790.60x = 421,984.70 × 197,154.80
  4. Step 4: Simplify right side
    281,790.60x = 83,196,309,131.56
  5. Step 5: Solve for x
    x = 83,196,309,131.56/281,790.60
  6. Step 6: Final answer
    x = 295,241.61

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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.