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Finding the Fourth Proportional to 312,249.08, 430,902.96 and 169,007.96

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Solution

The fourth proportional to 312,249.08, 430,902.96 and 169,007.96 is: 233,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,249.08 : 430,902.96 = 169,007.96 : x
  2. Step 2: Convert to fraction form
    312,249.08/430,902.96 = 169,007.96/x
  3. Step 3: Cross multiply
    312,249.08x = 430,902.96 × 169,007.96
  4. Step 4: Simplify right side
    312,249.08x = 72,826,030,227.56
  5. Step 5: Solve for x
    x = 72,826,030,227.56/312,249.08
  6. Step 6: Final answer
    x = 233,230.57

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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.