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Finding the Fourth Proportional to 545,493.75, 818,273.43 and 171,516.75

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Solution

The fourth proportional to 545,493.75, 818,273.43 and 171,516.75 is: 257,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,493.75 : 818,273.43 = 171,516.75 : x
  2. Step 2: Convert to fraction form
    545,493.75/818,273.43 = 171,516.75/x
  3. Step 3: Cross multiply
    545,493.75x = 818,273.43 × 171,516.75
  4. Step 4: Simplify right side
    545,493.75x = 140,347,599,324.95
  5. Step 5: Solve for x
    x = 140,347,599,324.95/545,493.75
  6. Step 6: Final answer
    x = 257,285.44

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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.