Home / 280,067.28-386,526.06-159,226.80

Finding the Fourth Proportional to 280,067.28, 386,526.06 and 159,226.80

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Solution

The fourth proportional to 280,067.28, 386,526.06 and 159,226.80 is: 219,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,067.28 : 386,526.06 = 159,226.80 : x
  2. Step 2: Convert to fraction form
    280,067.28/386,526.06 = 159,226.80/x
  3. Step 3: Cross multiply
    280,067.28x = 386,526.06 × 159,226.80
  4. Step 4: Simplify right side
    280,067.28x = 61,545,307,650.41
  5. Step 5: Solve for x
    x = 61,545,307,650.41/280,067.28
  6. Step 6: Final answer
    x = 219,751.87

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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.