Home / 221,036.70-331,555.05-196,542.30

Finding the Fourth Proportional to 221,036.70, 331,555.05 and 196,542.30

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Solution

The fourth proportional to 221,036.70, 331,555.05 and 196,542.30 is: 294,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,036.70 : 331,555.05 = 196,542.30 : x
  2. Step 2: Convert to fraction form
    221,036.70/331,555.05 = 196,542.30/x
  3. Step 3: Cross multiply
    221,036.70x = 331,555.05 × 196,542.30
  4. Step 4: Simplify right side
    221,036.70x = 65,164,592,103.62
  5. Step 5: Solve for x
    x = 65,164,592,103.62/221,036.70
  6. Step 6: Final answer
    x = 294,813.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.