Home / 326,538.20-489,340.02-186,006.44

Finding the Fourth Proportional to 326,538.20, 489,340.02 and 186,006.44

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Solution

The fourth proportional to 326,538.20, 489,340.02 and 186,006.44 is: 278,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,538.20 : 489,340.02 = 186,006.44 : x
  2. Step 2: Convert to fraction form
    326,538.20/489,340.02 = 186,006.44/x
  3. Step 3: Cross multiply
    326,538.20x = 489,340.02 × 186,006.44
  4. Step 4: Simplify right side
    326,538.20x = 91,020,395,069.73
  5. Step 5: Solve for x
    x = 91,020,395,069.73/326,538.20
  6. Step 6: Final answer
    x = 278,743.48

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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.