Home / 316,990.20-437,491.30-196,170.42

Finding the Fourth Proportional to 316,990.20, 437,491.30 and 196,170.42

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Solution

The fourth proportional to 316,990.20, 437,491.30 and 196,170.42 is: 270,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,990.20 : 437,491.30 = 196,170.42 : x
  2. Step 2: Convert to fraction form
    316,990.20/437,491.30 = 196,170.42/x
  3. Step 3: Cross multiply
    316,990.20x = 437,491.30 × 196,170.42
  4. Step 4: Simplify right side
    316,990.20x = 85,822,852,067.35
  5. Step 5: Solve for x
    x = 85,822,852,067.35/316,990.20
  6. Step 6: Final answer
    x = 270,742.92

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1.5x scale

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.