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Finding the Fourth Proportional to 543,270.70, 814,906.05 and 143,973.10

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Solution

The fourth proportional to 543,270.70, 814,906.05 and 143,973.10 is: 215,959.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,270.70 : 814,906.05 = 143,973.10 : x
  2. Step 2: Convert to fraction form
    543,270.70/814,906.05 = 143,973.10/x
  3. Step 3: Cross multiply
    543,270.70x = 814,906.05 × 143,973.10
  4. Step 4: Simplify right side
    543,270.70x = 117,324,550,227.26
  5. Step 5: Solve for x
    x = 117,324,550,227.26/543,270.70
  6. Step 6: Final answer
    x = 215,959.65

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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.