Home / 356,079.23-491,389.30-194,933.78

Finding the Fourth Proportional to 356,079.23, 491,389.30 and 194,933.78

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Solution

The fourth proportional to 356,079.23, 491,389.30 and 194,933.78 is: 269,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,079.23 : 491,389.30 = 194,933.78 : x
  2. Step 2: Convert to fraction form
    356,079.23/491,389.30 = 194,933.78/x
  3. Step 3: Cross multiply
    356,079.23x = 491,389.30 × 194,933.78
  4. Step 4: Simplify right side
    356,079.23x = 95,788,373,700.55
  5. Step 5: Solve for x
    x = 95,788,373,700.55/356,079.23
  6. Step 6: Final answer
    x = 269,008.60

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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.