Home / 281,530.22-388,496.66-154,181.21

Finding the Fourth Proportional to 281,530.22, 388,496.66 and 154,181.21

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Solution

The fourth proportional to 281,530.22, 388,496.66 and 154,181.21 is: 212,761.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,530.22 : 388,496.66 = 154,181.21 : x
  2. Step 2: Convert to fraction form
    281,530.22/388,496.66 = 154,181.21/x
  3. Step 3: Cross multiply
    281,530.22x = 388,496.66 × 154,181.21
  4. Step 4: Simplify right side
    281,530.22x = 59,898,882,406.37
  5. Step 5: Solve for x
    x = 59,898,882,406.37/281,530.22
  6. Step 6: Final answer
    x = 212,761.83

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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.