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Finding the Fourth Proportional to 274,394.70, 378,723.51 and 166,999.32

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Solution

The fourth proportional to 274,394.70, 378,723.51 and 166,999.32 is: 230,494.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,394.70 : 378,723.51 = 166,999.32 : x
  2. Step 2: Convert to fraction form
    274,394.70/378,723.51 = 166,999.32/x
  3. Step 3: Cross multiply
    274,394.70x = 378,723.51 × 166,999.32
  4. Step 4: Simplify right side
    274,394.70x = 63,246,568,638.01
  5. Step 5: Solve for x
    x = 63,246,568,638.01/274,394.70
  6. Step 6: Final answer
    x = 230,494.86

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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.