Home / 356,026.11-491,315.67-194,879.72

Finding the Fourth Proportional to 356,026.11, 491,315.67 and 194,879.72

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Solution

The fourth proportional to 356,026.11, 491,315.67 and 194,879.72 is: 268,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,026.11 : 491,315.67 = 194,879.72 : x
  2. Step 2: Convert to fraction form
    356,026.11/491,315.67 = 194,879.72/x
  3. Step 3: Cross multiply
    356,026.11x = 491,315.67 × 194,879.72
  4. Step 4: Simplify right side
    356,026.11x = 95,747,457,744.63
  5. Step 5: Solve for x
    x = 95,747,457,744.63/356,026.11
  6. Step 6: Final answer
    x = 268,933.81

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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.