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Finding the Fourth Proportional to 185,243.58, 255,636.41 and 100,360.65

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Solution

The fourth proportional to 185,243.58, 255,636.41 and 100,360.65 is: 138,497.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,243.58 : 255,636.41 = 100,360.65 : x
  2. Step 2: Convert to fraction form
    185,243.58/255,636.41 = 100,360.65/x
  3. Step 3: Cross multiply
    185,243.58x = 255,636.41 × 100,360.65
  4. Step 4: Simplify right side
    185,243.58x = 25,655,836,271.27
  5. Step 5: Solve for x
    x = 25,655,836,271.27/185,243.58
  6. Step 6: Final answer
    x = 138,497.84

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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.