Home / 228,715.20-315,618.42-131,922.98

Finding the Fourth Proportional to 228,715.20, 315,618.42 and 131,922.98

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Solution

The fourth proportional to 228,715.20, 315,618.42 and 131,922.98 is: 182,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,715.20 : 315,618.42 = 131,922.98 : x
  2. Step 2: Convert to fraction form
    228,715.20/315,618.42 = 131,922.98/x
  3. Step 3: Cross multiply
    228,715.20x = 315,618.42 × 131,922.98
  4. Step 4: Simplify right side
    228,715.20x = 41,637,322,509.29
  5. Step 5: Solve for x
    x = 41,637,322,509.29/228,715.20
  6. Step 6: Final answer
    x = 182,048.78

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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.