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Finding the Fourth Proportional to 268,761.29, 370,893.36 and 154,037.45

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Solution

The fourth proportional to 268,761.29, 370,893.36 and 154,037.45 is: 212,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,761.29 : 370,893.36 = 154,037.45 : x
  2. Step 2: Convert to fraction form
    268,761.29/370,893.36 = 154,037.45/x
  3. Step 3: Cross multiply
    268,761.29x = 370,893.36 × 154,037.45
  4. Step 4: Simplify right side
    268,761.29x = 57,131,467,396.33
  5. Step 5: Solve for x
    x = 57,131,467,396.33/268,761.29
  6. Step 6: Final answer
    x = 212,573.27

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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.