Home / 328,826.56-493,243.68-115,600.72

Finding the Fourth Proportional to 328,826.56, 493,243.68 and 115,600.72

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Solution

The fourth proportional to 328,826.56, 493,243.68 and 115,600.72 is: 173,402.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,826.56 : 493,243.68 = 115,600.72 : x
  2. Step 2: Convert to fraction form
    328,826.56/493,243.68 = 115,600.72/x
  3. Step 3: Cross multiply
    328,826.56x = 493,243.68 × 115,600.72
  4. Step 4: Simplify right side
    328,826.56x = 57,019,324,018.42
  5. Step 5: Solve for x
    x = 57,019,324,018.42/328,826.56
  6. Step 6: Final answer
    x = 173,402.43

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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.