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Finding the Fourth Proportional to 185,494.38, 255,980.97 and 100,611.51

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Solution

The fourth proportional to 185,494.38, 255,980.97 and 100,611.51 is: 138,843.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,494.38 : 255,980.97 = 100,611.51 : x
  2. Step 2: Convert to fraction form
    185,494.38/255,980.97 = 100,611.51/x
  3. Step 3: Cross multiply
    185,494.38x = 255,980.97 × 100,611.51
  4. Step 4: Simplify right side
    185,494.38x = 25,754,631,922.96
  5. Step 5: Solve for x
    x = 25,754,631,922.96/185,494.38
  6. Step 6: Final answer
    x = 138,843.19

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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.