Home / 202,266.20-303,399.30-139,280.60

Finding the Fourth Proportional to 202,266.20, 303,399.30 and 139,280.60

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Solution

The fourth proportional to 202,266.20, 303,399.30 and 139,280.60 is: 208,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,266.20 : 303,399.30 = 139,280.60 : x
  2. Step 2: Convert to fraction form
    202,266.20/303,399.30 = 139,280.60/x
  3. Step 3: Cross multiply
    202,266.20x = 303,399.30 × 139,280.60
  4. Step 4: Simplify right side
    202,266.20x = 42,257,636,543.58
  5. Step 5: Solve for x
    x = 42,257,636,543.58/202,266.20
  6. Step 6: Final answer
    x = 208,920.90

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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.