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Finding the Fourth Proportional to 303,473.79, 418,793.87 and 167,507.78

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Solution

The fourth proportional to 303,473.79, 418,793.87 and 167,507.78 is: 231,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,473.79 : 418,793.87 = 167,507.78 : x
  2. Step 2: Convert to fraction form
    303,473.79/418,793.87 = 167,507.78/x
  3. Step 3: Cross multiply
    303,473.79x = 418,793.87 × 167,507.78
  4. Step 4: Simplify right side
    303,473.79x = 70,151,231,441.31
  5. Step 5: Solve for x
    x = 70,151,231,441.31/303,473.79
  6. Step 6: Final answer
    x = 231,160.76

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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.