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Finding the Fourth Proportional to 275,116.39, 379,664.50 and 166,205.59

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Solution

The fourth proportional to 275,116.39, 379,664.50 and 166,205.59 is: 229,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,116.39 : 379,664.50 = 166,205.59 : x
  2. Step 2: Convert to fraction form
    275,116.39/379,664.50 = 166,205.59/x
  3. Step 3: Cross multiply
    275,116.39x = 379,664.50 × 166,205.59
  4. Step 4: Simplify right side
    275,116.39x = 63,102,360,326.23
  5. Step 5: Solve for x
    x = 63,102,360,326.23/275,116.39
  6. Step 6: Final answer
    x = 229,366.05

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1.5x scale

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.