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Finding the Fourth Proportional to 236,774, 326,744.02 and 129,341.27

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Solution

The fourth proportional to 236,774, 326,744.02 and 129,341.27 is: 178,488.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,774 : 326,744.02 = 129,341.27 : x
  2. Step 2: Convert to fraction form
    236,774/326,744.02 = 129,341.27/x
  3. Step 3: Cross multiply
    236,774x = 326,744.02 × 129,341.27
  4. Step 4: Simplify right side
    236,774x = 42,261,486,511.71
  5. Step 5: Solve for x
    x = 42,261,486,511.71/236,774
  6. Step 6: Final answer
    x = 178,488.71

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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.