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Finding the Fourth Proportional to 202,545.20, 303,234.60 and 123,813.20

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Solution

The fourth proportional to 202,545.20, 303,234.60 and 123,813.20 is: 185,363.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,545.20 : 303,234.60 = 123,813.20 : x
  2. Step 2: Convert to fraction form
    202,545.20/303,234.60 = 123,813.20/x
  3. Step 3: Cross multiply
    202,545.20x = 303,234.60 × 123,813.20
  4. Step 4: Simplify right side
    202,545.20x = 37,544,446,176.72
  5. Step 5: Solve for x
    x = 37,544,446,176.72/202,545.20
  6. Step 6: Final answer
    x = 185,363.30

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1.5x scale

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.