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Finding the Fourth Proportional to 185,253.90, 255,650.63 and 100,370.90

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Solution

The fourth proportional to 185,253.90, 255,650.63 and 100,370.90 is: 138,511.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,253.90 : 255,650.63 = 100,370.90 : x
  2. Step 2: Convert to fraction form
    185,253.90/255,650.63 = 100,370.90/x
  3. Step 3: Cross multiply
    185,253.90x = 255,650.63 × 100,370.90
  4. Step 4: Simplify right side
    185,253.90x = 25,659,882,038.56
  5. Step 5: Solve for x
    x = 25,659,882,038.56/185,253.90
  6. Step 6: Final answer
    x = 138,511.97

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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.