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Finding the Fourth Proportional to 268,761.30, 370,893.36 and 154,037.46

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Solution

The fourth proportional to 268,761.30, 370,893.36 and 154,037.46 is: 212,573.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,761.30 : 370,893.36 = 154,037.46 : x
  2. Step 2: Convert to fraction form
    268,761.30/370,893.36 = 154,037.46/x
  3. Step 3: Cross multiply
    268,761.30x = 370,893.36 × 154,037.46
  4. Step 4: Simplify right side
    268,761.30x = 57,131,471,105.27
  5. Step 5: Solve for x
    x = 57,131,471,105.27/268,761.30
  6. Step 6: Final answer
    x = 212,573.28

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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.