Home / 228,512.75-315,350.81-131,663.07

Finding the Fourth Proportional to 228,512.75, 315,350.81 and 131,663.07

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Solution

The fourth proportional to 228,512.75, 315,350.81 and 131,663.07 is: 181,696.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,512.75 : 315,350.81 = 131,663.07 : x
  2. Step 2: Convert to fraction form
    228,512.75/315,350.81 = 131,663.07/x
  3. Step 3: Cross multiply
    228,512.75x = 315,350.81 × 131,663.07
  4. Step 4: Simplify right side
    228,512.75x = 41,520,055,113.27
  5. Step 5: Solve for x
    x = 41,520,055,113.27/228,512.75
  6. Step 6: Final answer
    x = 181,696.89

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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.