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Finding the Fourth Proportional to 328,818.44, 493,249.53 and 115,560.56

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Solution

The fourth proportional to 328,818.44, 493,249.53 and 115,560.56 is: 173,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,818.44 : 493,249.53 = 115,560.56 : x
  2. Step 2: Convert to fraction form
    328,818.44/493,249.53 = 115,560.56/x
  3. Step 3: Cross multiply
    328,818.44x = 493,249.53 × 115,560.56
  4. Step 4: Simplify right side
    328,818.44x = 57,000,191,906.54
  5. Step 5: Solve for x
    x = 57,000,191,906.54/328,818.44
  6. Step 6: Final answer
    x = 173,348.53

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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.