Home / 258,844.85-388,267.46-81,367.37

Finding the Fourth Proportional to 258,844.85, 388,267.46 and 81,367.37

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Solution

The fourth proportional to 258,844.85, 388,267.46 and 81,367.37 is: 122,051.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,844.85 : 388,267.46 = 81,367.37 : x
  2. Step 2: Convert to fraction form
    258,844.85/388,267.46 = 81,367.37/x
  3. Step 3: Cross multiply
    258,844.85x = 388,267.46 × 81,367.37
  4. Step 4: Simplify right side
    258,844.85x = 31,592,301,669.94
  5. Step 5: Solve for x
    x = 31,592,301,669.94/258,844.85
  6. Step 6: Final answer
    x = 122,051.11

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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.