Home / 228,536.28-315,233.10-143,505.72

Finding the Fourth Proportional to 228,536.28, 315,233.10 and 143,505.72

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Solution

The fourth proportional to 228,536.28, 315,233.10 and 143,505.72 is: 197,945.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,536.28 : 315,233.10 = 143,505.72 : x
  2. Step 2: Convert to fraction form
    228,536.28/315,233.10 = 143,505.72/x
  3. Step 3: Cross multiply
    228,536.28x = 315,233.10 × 143,505.72
  4. Step 4: Simplify right side
    228,536.28x = 45,237,752,983.33
  5. Step 5: Solve for x
    x = 45,237,752,983.33/228,536.28
  6. Step 6: Final answer
    x = 197,945.61

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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.