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Finding the Fourth Proportional to 281,104.96, 421,795.96 and 131,355.60

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Solution

The fourth proportional to 281,104.96, 421,795.96 and 131,355.60 is: 197,098.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,104.96 : 421,795.96 = 131,355.60 : x
  2. Step 2: Convert to fraction form
    281,104.96/421,795.96 = 131,355.60/x
  3. Step 3: Cross multiply
    281,104.96x = 421,795.96 × 131,355.60
  4. Step 4: Simplify right side
    281,104.96x = 55,405,261,403.38
  5. Step 5: Solve for x
    x = 55,405,261,403.38/281,104.96
  6. Step 6: Final answer
    x = 197,098.13

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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.