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Finding the Fourth Proportional to 236,701.69, 326,633.88 and 129,249.88

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Solution

The fourth proportional to 236,701.69, 326,633.88 and 129,249.88 is: 178,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,701.69 : 326,633.88 = 129,249.88 : x
  2. Step 2: Convert to fraction form
    236,701.69/326,633.88 = 129,249.88/x
  3. Step 3: Cross multiply
    236,701.69x = 326,633.88 × 129,249.88
  4. Step 4: Simplify right side
    236,701.69x = 42,217,389,793.93
  5. Step 5: Solve for x
    x = 42,217,389,793.93/236,701.69
  6. Step 6: Final answer
    x = 178,356.94

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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.