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Finding the Fourth Proportional to 185,262.80, 255,662.92 and 100,379.84

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Solution

The fourth proportional to 185,262.80, 255,662.92 and 100,379.84 is: 138,524.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,262.80 : 255,662.92 = 100,379.84 : x
  2. Step 2: Convert to fraction form
    185,262.80/255,662.92 = 100,379.84/x
  3. Step 3: Cross multiply
    185,262.80x = 255,662.92 × 100,379.84
  4. Step 4: Simplify right side
    185,262.80x = 25,663,403,003.53
  5. Step 5: Solve for x
    x = 25,663,403,003.53/185,262.80
  6. Step 6: Final answer
    x = 138,524.32

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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.