Home / 263,538.89-363,683.82-142,680.21

Finding the Fourth Proportional to 263,538.89, 363,683.82 and 142,680.21

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Solution

The fourth proportional to 263,538.89, 363,683.82 and 142,680.21 is: 196,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,538.89 : 363,683.82 = 142,680.21 : x
  2. Step 2: Convert to fraction form
    263,538.89/363,683.82 = 142,680.21/x
  3. Step 3: Cross multiply
    263,538.89x = 363,683.82 × 142,680.21
  4. Step 4: Simplify right side
    263,538.89x = 51,890,483,811.20
  5. Step 5: Solve for x
    x = 51,890,483,811.20/263,538.89
  6. Step 6: Final answer
    x = 196,898.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.