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Finding the Fourth Proportional to 185,254.32, 255,650.34 and 100,371.39

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Solution

The fourth proportional to 185,254.32, 255,650.34 and 100,371.39 is: 138,512.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,254.32 : 255,650.34 = 100,371.39 : x
  2. Step 2: Convert to fraction form
    185,254.32/255,650.34 = 100,371.39/x
  3. Step 3: Cross multiply
    185,254.32x = 255,650.34 × 100,371.39
  4. Step 4: Simplify right side
    185,254.32x = 25,659,979,979.77
  5. Step 5: Solve for x
    x = 25,659,979,979.77/185,254.32
  6. Step 6: Final answer
    x = 138,512.18

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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.