Home / 281,544.38-388,531.44-154,220.48

Finding the Fourth Proportional to 281,544.38, 388,531.44 and 154,220.48

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Solution

The fourth proportional to 281,544.38, 388,531.44 and 154,220.48 is: 212,824.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,544.38 : 388,531.44 = 154,220.48 : x
  2. Step 2: Convert to fraction form
    281,544.38/388,531.44 = 154,220.48/x
  3. Step 3: Cross multiply
    281,544.38x = 388,531.44 × 154,220.48
  4. Step 4: Simplify right side
    281,544.38x = 59,919,505,171.89
  5. Step 5: Solve for x
    x = 59,919,505,171.89/281,544.38
  6. Step 6: Final answer
    x = 212,824.37

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1.5x scale

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.