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Finding the Fourth Proportional to 185,103.70, 277,620.41 and 90,238.47

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Solution

The fourth proportional to 185,103.70, 277,620.41 and 90,238.47 is: 135,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,103.70 : 277,620.41 = 90,238.47 : x
  2. Step 2: Convert to fraction form
    185,103.70/277,620.41 = 90,238.47/x
  3. Step 3: Cross multiply
    185,103.70x = 277,620.41 × 90,238.47
  4. Step 4: Simplify right side
    185,103.70x = 25,052,041,785.31
  5. Step 5: Solve for x
    x = 25,052,041,785.31/185,103.70
  6. Step 6: Final answer
    x = 135,340.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.