Home / 281,227.32-388,105.26-153,914.04

Finding the Fourth Proportional to 281,227.32, 388,105.26 and 153,914.04

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Solution

The fourth proportional to 281,227.32, 388,105.26 and 153,914.04 is: 212,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,227.32 : 388,105.26 = 153,914.04 : x
  2. Step 2: Convert to fraction form
    281,227.32/388,105.26 = 153,914.04/x
  3. Step 3: Cross multiply
    281,227.32x = 388,105.26 × 153,914.04
  4. Step 4: Simplify right side
    281,227.32x = 59,734,848,511.85
  5. Step 5: Solve for x
    x = 59,734,848,511.85/281,227.32
  6. Step 6: Final answer
    x = 212,407.70

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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.