Home / 281,291.37-388,105.32-160,388.56

Finding the Fourth Proportional to 281,291.37, 388,105.32 and 160,388.56

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Solution

The fourth proportional to 281,291.37, 388,105.32 and 160,388.56 is: 221,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,291.37 : 388,105.32 = 160,388.56 : x
  2. Step 2: Convert to fraction form
    281,291.37/388,105.32 = 160,388.56/x
  3. Step 3: Cross multiply
    281,291.37x = 388,105.32 × 160,388.56
  4. Step 4: Simplify right side
    281,291.37x = 62,247,653,403.14
  5. Step 5: Solve for x
    x = 62,247,653,403.14/281,291.37
  6. Step 6: Final answer
    x = 221,292.44

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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.