Home / 227,021.86-313,396.32-131,509.90

Finding the Fourth Proportional to 227,021.86, 313,396.32 and 131,509.90

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Solution

The fourth proportional to 227,021.86, 313,396.32 and 131,509.90 is: 181,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,021.86 : 313,396.32 = 131,509.90 : x
  2. Step 2: Convert to fraction form
    227,021.86/313,396.32 = 131,509.90/x
  3. Step 3: Cross multiply
    227,021.86x = 313,396.32 × 131,509.90
  4. Step 4: Simplify right side
    227,021.86x = 41,214,718,703.57
  5. Step 5: Solve for x
    x = 41,214,718,703.57/227,021.86
  6. Step 6: Final answer
    x = 181,545.15

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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.