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Finding the Fourth Proportional to 344,361.38, 515,031.22 and 306,676.41

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Solution

The fourth proportional to 344,361.38, 515,031.22 and 306,676.41 is: 458,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,361.38 : 515,031.22 = 306,676.41 : x
  2. Step 2: Convert to fraction form
    344,361.38/515,031.22 = 306,676.41/x
  3. Step 3: Cross multiply
    344,361.38x = 515,031.22 × 306,676.41
  4. Step 4: Simplify right side
    344,361.38x = 157,947,925,341.72
  5. Step 5: Solve for x
    x = 157,947,925,341.72/344,361.38
  6. Step 6: Final answer
    x = 458,669.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.