Home / 281,795.60-421,992.20-197,159.80

Finding the Fourth Proportional to 281,795.60, 421,992.20 and 197,159.80

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Solution

The fourth proportional to 281,795.60, 421,992.20 and 197,159.80 is: 295,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,795.60 : 421,992.20 = 197,159.80 : x
  2. Step 2: Convert to fraction form
    281,795.60/421,992.20 = 197,159.80/x
  3. Step 3: Cross multiply
    281,795.60x = 421,992.20 × 197,159.80
  4. Step 4: Simplify right side
    281,795.60x = 83,199,897,753.56
  5. Step 5: Solve for x
    x = 83,199,897,753.56/281,795.60
  6. Step 6: Final answer
    x = 295,249.10

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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.