Home / 325,860.20-489,227.70-208,053.80

Finding the Fourth Proportional to 325,860.20, 489,227.70 and 208,053.80

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Solution

The fourth proportional to 325,860.20, 489,227.70 and 208,053.80 is: 312,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,860.20 : 489,227.70 = 208,053.80 : x
  2. Step 2: Convert to fraction form
    325,860.20/489,227.70 = 208,053.80/x
  3. Step 3: Cross multiply
    325,860.20x = 489,227.70 × 208,053.80
  4. Step 4: Simplify right side
    325,860.20x = 101,785,682,050.26
  5. Step 5: Solve for x
    x = 101,785,682,050.26/325,860.20
  6. Step 6: Final answer
    x = 312,359.97

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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.