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Finding the Fourth Proportional to 219,691.56, 303,057.42 and 133,676.76

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Solution

The fourth proportional to 219,691.56, 303,057.42 and 133,676.76 is: 184,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,691.56 : 303,057.42 = 133,676.76 : x
  2. Step 2: Convert to fraction form
    219,691.56/303,057.42 = 133,676.76/x
  3. Step 3: Cross multiply
    219,691.56x = 303,057.42 × 133,676.76
  4. Step 4: Simplify right side
    219,691.56x = 40,511,733,999.56
  5. Step 5: Solve for x
    x = 40,511,733,999.56/219,691.56
  6. Step 6: Final answer
    x = 184,402.78

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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.