Home / 228,406.41-315,172.97-131,641.57

Finding the Fourth Proportional to 228,406.41, 315,172.97 and 131,641.57

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Solution

The fourth proportional to 228,406.41, 315,172.97 and 131,641.57 is: 181,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,406.41 : 315,172.97 = 131,641.57 : x
  2. Step 2: Convert to fraction form
    228,406.41/315,172.97 = 131,641.57/x
  3. Step 3: Cross multiply
    228,406.41x = 315,172.97 × 131,641.57
  4. Step 4: Simplify right side
    228,406.41x = 41,489,862,358.29
  5. Step 5: Solve for x
    x = 41,489,862,358.29/228,406.41
  6. Step 6: Final answer
    x = 181,649.29

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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.