Home / 355,921.96-491,172.36-194,777.11

Finding the Fourth Proportional to 355,921.96, 491,172.36 and 194,777.11

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Solution

The fourth proportional to 355,921.96, 491,172.36 and 194,777.11 is: 268,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,921.96 : 491,172.36 = 194,777.11 : x
  2. Step 2: Convert to fraction form
    355,921.96/491,172.36 = 194,777.11/x
  3. Step 3: Cross multiply
    355,921.96x = 491,172.36 × 194,777.11
  4. Step 4: Simplify right side
    355,921.96x = 95,669,131,818.79
  5. Step 5: Solve for x
    x = 95,669,131,818.79/355,921.96
  6. Step 6: Final answer
    x = 268,792.44

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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.