Home / 266,868.21-368,241.75-159,415.43

Finding the Fourth Proportional to 266,868.21, 368,241.75 and 159,415.43

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Solution

The fourth proportional to 266,868.21, 368,241.75 and 159,415.43 is: 219,971.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,868.21 : 368,241.75 = 159,415.43 : x
  2. Step 2: Convert to fraction form
    266,868.21/368,241.75 = 159,415.43/x
  3. Step 3: Cross multiply
    266,868.21x = 368,241.75 × 159,415.43
  4. Step 4: Simplify right side
    266,868.21x = 58,703,416,398.14
  5. Step 5: Solve for x
    x = 58,703,416,398.14/266,868.21
  6. Step 6: Final answer
    x = 219,971.56

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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.