Home / 263,638.45-363,819.23-142,776.97

Finding the Fourth Proportional to 263,638.45, 363,819.23 and 142,776.97

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Solution

The fourth proportional to 263,638.45, 363,819.23 and 142,776.97 is: 197,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,638.45 : 363,819.23 = 142,776.97 : x
  2. Step 2: Convert to fraction form
    263,638.45/363,819.23 = 142,776.97/x
  3. Step 3: Cross multiply
    263,638.45x = 363,819.23 × 142,776.97
  4. Step 4: Simplify right side
    263,638.45x = 51,945,007,287.13
  5. Step 5: Solve for x
    x = 51,945,007,287.13/263,638.45
  6. Step 6: Final answer
    x = 197,031.23

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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.