Home / 221,278.50-332,249.04-126,615.42

Finding the Fourth Proportional to 221,278.50, 332,249.04 and 126,615.42

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Solution

The fourth proportional to 221,278.50, 332,249.04 and 126,615.42 is: 190,112.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,278.50 : 332,249.04 = 126,615.42 : x
  2. Step 2: Convert to fraction form
    221,278.50/332,249.04 = 126,615.42/x
  3. Step 3: Cross multiply
    221,278.50x = 332,249.04 × 126,615.42
  4. Step 4: Simplify right side
    221,278.50x = 42,067,851,744.20
  5. Step 5: Solve for x
    x = 42,067,851,744.20/221,278.50
  6. Step 6: Final answer
    x = 190,112.69

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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.