Home / 280,106.39-386,545.01-159,247.73

Finding the Fourth Proportional to 280,106.39, 386,545.01 and 159,247.73

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Solution

The fourth proportional to 280,106.39, 386,545.01 and 159,247.73 is: 219,760.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,106.39 : 386,545.01 = 159,247.73 : x
  2. Step 2: Convert to fraction form
    280,106.39/386,545.01 = 159,247.73/x
  3. Step 3: Cross multiply
    280,106.39x = 386,545.01 × 159,247.73
  4. Step 4: Simplify right side
    280,106.39x = 61,556,412,656.36
  5. Step 5: Solve for x
    x = 61,556,412,656.36/280,106.39
  6. Step 6: Final answer
    x = 219,760.83

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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.