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Finding the Fourth Proportional to 303,897.75, 419,378.91 and 169,761.75

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Solution

The fourth proportional to 303,897.75, 419,378.91 and 169,761.75 is: 234,271.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,897.75 : 419,378.91 = 169,761.75 : x
  2. Step 2: Convert to fraction form
    303,897.75/419,378.91 = 169,761.75/x
  3. Step 3: Cross multiply
    303,897.75x = 419,378.91 × 169,761.75
  4. Step 4: Simplify right side
    303,897.75x = 71,194,497,674.69
  5. Step 5: Solve for x
    x = 71,194,497,674.69/303,897.75
  6. Step 6: Final answer
    x = 234,271.22

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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.