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Finding the Fourth Proportional to 202,415.80, 303,623.70 and 193,777.15

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Solution

The fourth proportional to 202,415.80, 303,623.70 and 193,777.15 is: 290,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,415.80 : 303,623.70 = 193,777.15 : x
  2. Step 2: Convert to fraction form
    202,415.80/303,623.70 = 193,777.15/x
  3. Step 3: Cross multiply
    202,415.80x = 303,623.70 × 193,777.15
  4. Step 4: Simplify right side
    202,415.80x = 58,835,335,258.46
  5. Step 5: Solve for x
    x = 58,835,335,258.46/202,415.80
  6. Step 6: Final answer
    x = 290,665.73

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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.