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Finding the Fourth Proportional to 266,872.51, 368,247.68 and 159,419.73

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Solution

The fourth proportional to 266,872.51, 368,247.68 and 159,419.73 is: 219,977.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,872.51 : 368,247.68 = 159,419.73 : x
  2. Step 2: Convert to fraction form
    266,872.51/368,247.68 = 159,419.73/x
  3. Step 3: Cross multiply
    266,872.51x = 368,247.68 × 159,419.73
  4. Step 4: Simplify right side
    266,872.51x = 58,705,944,921.63
  5. Step 5: Solve for x
    x = 58,705,944,921.63/266,872.51
  6. Step 6: Final answer
    x = 219,977.49

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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.