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Finding the Fourth Proportional to 275,212.58, 379,806.15 and 171,907.95

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Solution

The fourth proportional to 275,212.58, 379,806.15 and 171,907.95 is: 237,240.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,212.58 : 379,806.15 = 171,907.95 : x
  2. Step 2: Convert to fraction form
    275,212.58/379,806.15 = 171,907.95/x
  3. Step 3: Cross multiply
    275,212.58x = 379,806.15 × 171,907.95
  4. Step 4: Simplify right side
    275,212.58x = 65,291,696,643.89
  5. Step 5: Solve for x
    x = 65,291,696,643.89/275,212.58
  6. Step 6: Final answer
    x = 237,240.96

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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.