Home / 326,092.20-489,138.30-247,360.20

Finding the Fourth Proportional to 326,092.20, 489,138.30 and 247,360.20

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Solution

The fourth proportional to 326,092.20, 489,138.30 and 247,360.20 is: 371,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,092.20 : 489,138.30 = 247,360.20 : x
  2. Step 2: Convert to fraction form
    326,092.20/489,138.30 = 247,360.20/x
  3. Step 3: Cross multiply
    326,092.20x = 489,138.30 × 247,360.20
  4. Step 4: Simplify right side
    326,092.20x = 120,993,347,715.66
  5. Step 5: Solve for x
    x = 120,993,347,715.66/326,092.20
  6. Step 6: Final answer
    x = 371,040.30

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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.