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Finding the Fourth Proportional to 174,381.78, 261,570.84 and 115,480.98

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Solution

The fourth proportional to 174,381.78, 261,570.84 and 115,480.98 is: 173,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,381.78 : 261,570.84 = 115,480.98 : x
  2. Step 2: Convert to fraction form
    174,381.78/261,570.84 = 115,480.98/x
  3. Step 3: Cross multiply
    174,381.78x = 261,570.84 × 115,480.98
  4. Step 4: Simplify right side
    174,381.78x = 30,206,456,942.62
  5. Step 5: Solve for x
    x = 30,206,456,942.62/174,381.78
  6. Step 6: Final answer
    x = 173,220.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.