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Finding the Fourth Proportional to 213,028.56, 293,914.44 and 123,587.28

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Solution

The fourth proportional to 213,028.56, 293,914.44 and 123,587.28 is: 170,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,028.56 : 293,914.44 = 123,587.28 : x
  2. Step 2: Convert to fraction form
    213,028.56/293,914.44 = 123,587.28/x
  3. Step 3: Cross multiply
    213,028.56x = 293,914.44 × 123,587.28
  4. Step 4: Simplify right side
    213,028.56x = 36,324,086,192.32
  5. Step 5: Solve for x
    x = 36,324,086,192.32/213,028.56
  6. Step 6: Final answer
    x = 170,512.75

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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.