Home / 281,769.92-388,844.64-154,456.64

Finding the Fourth Proportional to 281,769.92, 388,844.64 and 154,456.64

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Solution

The fourth proportional to 281,769.92, 388,844.64 and 154,456.64 is: 213,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,769.92 : 388,844.64 = 154,456.64 : x
  2. Step 2: Convert to fraction form
    281,769.92/388,844.64 = 154,456.64/x
  3. Step 3: Cross multiply
    281,769.92x = 388,844.64 × 154,456.64
  4. Step 4: Simplify right side
    281,769.92x = 60,059,636,576.41
  5. Step 5: Solve for x
    x = 60,059,636,576.41/281,769.92
  6. Step 6: Final answer
    x = 213,151.34

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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.