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Finding the Fourth Proportional to 300,761.45, 415,045.37 and 178,336.22

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Solution

The fourth proportional to 300,761.45, 415,045.37 and 178,336.22 is: 246,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,761.45 : 415,045.37 = 178,336.22 : x
  2. Step 2: Convert to fraction form
    300,761.45/415,045.37 = 178,336.22/x
  3. Step 3: Cross multiply
    300,761.45x = 415,045.37 × 178,336.22
  4. Step 4: Simplify right side
    300,761.45x = 74,017,623,897.76
  5. Step 5: Solve for x
    x = 74,017,623,897.76/300,761.45
  6. Step 6: Final answer
    x = 246,100.77

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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.