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Finding the Fourth Proportional to 485,093.82, 727,747.20 and 143,510.52

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Solution

The fourth proportional to 485,093.82, 727,747.20 and 143,510.52 is: 215,297.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,093.82 : 727,747.20 = 143,510.52 : x
  2. Step 2: Convert to fraction form
    485,093.82/727,747.20 = 143,510.52/x
  3. Step 3: Cross multiply
    485,093.82x = 727,747.20 × 143,510.52
  4. Step 4: Simplify right side
    485,093.82x = 104,439,379,100.54
  5. Step 5: Solve for x
    x = 104,439,379,100.54/485,093.82
  6. Step 6: Final answer
    x = 215,297.28

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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.