Home / 281,869.14-388,976.45-154,544.42

Finding the Fourth Proportional to 281,869.14, 388,976.45 and 154,544.42

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Solution

The fourth proportional to 281,869.14, 388,976.45 and 154,544.42 is: 213,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,869.14 : 388,976.45 = 154,544.42 : x
  2. Step 2: Convert to fraction form
    281,869.14/388,976.45 = 154,544.42/x
  3. Step 3: Cross multiply
    281,869.14x = 388,976.45 × 154,544.42
  4. Step 4: Simplify right side
    281,869.14x = 60,114,139,858.91
  5. Step 5: Solve for x
    x = 60,114,139,858.91/281,869.14
  6. Step 6: Final answer
    x = 213,269.67

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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.