Home / 220,938.20-331,407.30-202,275.80

Finding the Fourth Proportional to 220,938.20, 331,407.30 and 202,275.80

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Solution

The fourth proportional to 220,938.20, 331,407.30 and 202,275.80 is: 303,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,938.20 : 331,407.30 = 202,275.80 : x
  2. Step 2: Convert to fraction form
    220,938.20/331,407.30 = 202,275.80/x
  3. Step 3: Cross multiply
    220,938.20x = 331,407.30 × 202,275.80
  4. Step 4: Simplify right side
    220,938.20x = 67,035,676,733.34
  5. Step 5: Solve for x
    x = 67,035,676,733.34/220,938.20
  6. Step 6: Final answer
    x = 303,413.70

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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.