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Finding the Fourth Proportional to 220,860.54, 304,481.43 and 149,126.94

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Solution

The fourth proportional to 220,860.54, 304,481.43 and 149,126.94 is: 205,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,860.54 : 304,481.43 = 149,126.94 : x
  2. Step 2: Convert to fraction form
    220,860.54/304,481.43 = 149,126.94/x
  3. Step 3: Cross multiply
    220,860.54x = 304,481.43 × 149,126.94
  4. Step 4: Simplify right side
    220,860.54x = 45,406,383,942.72
  5. Step 5: Solve for x
    x = 45,406,383,942.72/220,860.54
  6. Step 6: Final answer
    x = 205,588.49

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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.