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Finding the Fourth Proportional to 143,313.18, 214,945.76 and 43,449.49

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Solution

The fourth proportional to 143,313.18, 214,945.76 and 43,449.49 is: 65,166.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,313.18 : 214,945.76 = 43,449.49 : x
  2. Step 2: Convert to fraction form
    143,313.18/214,945.76 = 43,449.49/x
  3. Step 3: Cross multiply
    143,313.18x = 214,945.76 × 43,449.49
  4. Step 4: Simplify right side
    143,313.18x = 9,339,284,026.97
  5. Step 5: Solve for x
    x = 9,339,284,026.97/143,313.18
  6. Step 6: Final answer
    x = 65,166.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.