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Finding the Fourth Proportional to 303,131.36, 418,346.20 and 167,191.90

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Solution

The fourth proportional to 303,131.36, 418,346.20 and 167,191.90 is: 230,738.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,131.36 : 418,346.20 = 167,191.90 : x
  2. Step 2: Convert to fraction form
    303,131.36/418,346.20 = 167,191.90/x
  3. Step 3: Cross multiply
    303,131.36x = 418,346.20 × 167,191.90
  4. Step 4: Simplify right side
    303,131.36x = 69,944,096,035.78
  5. Step 5: Solve for x
    x = 69,944,096,035.78/303,131.36
  6. Step 6: Final answer
    x = 230,738.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.