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Finding the Fourth Proportional to 202,221.70, 303,332.55 and 199,111.30

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Solution

The fourth proportional to 202,221.70, 303,332.55 and 199,111.30 is: 298,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,221.70 : 303,332.55 = 199,111.30 : x
  2. Step 2: Convert to fraction form
    202,221.70/303,332.55 = 199,111.30/x
  3. Step 3: Cross multiply
    202,221.70x = 303,332.55 × 199,111.30
  4. Step 4: Simplify right side
    202,221.70x = 60,396,938,362.82
  5. Step 5: Solve for x
    x = 60,396,938,362.82/202,221.70
  6. Step 6: Final answer
    x = 298,666.95

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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.