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Finding the Fourth Proportional to 179,988, 248,383.44 and 100,500

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Solution

The fourth proportional to 179,988, 248,383.44 and 100,500 is: 138,690

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,988 : 248,383.44 = 100,500 : x
  2. Step 2: Convert to fraction form
    179,988/248,383.44 = 100,500/x
  3. Step 3: Cross multiply
    179,988x = 248,383.44 × 100,500
  4. Step 4: Simplify right side
    179,988x = 24,962,535,720
  5. Step 5: Solve for x
    x = 24,962,535,720/179,988
  6. Step 6: Final answer
    x = 138,690

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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.