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Finding the Fourth Proportional to 236,910.48, 326,935.67 and 129,480.48

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Solution

The fourth proportional to 236,910.48, 326,935.67 and 129,480.48 is: 178,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,910.48 : 326,935.67 = 129,480.48 : x
  2. Step 2: Convert to fraction form
    236,910.48/326,935.67 = 129,480.48/x
  3. Step 3: Cross multiply
    236,910.48x = 326,935.67 × 129,480.48
  4. Step 4: Simplify right side
    236,910.48x = 42,331,787,804.42
  5. Step 5: Solve for x
    x = 42,331,787,804.42/236,910.48
  6. Step 6: Final answer
    x = 178,682.63

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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.