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Finding the Fourth Proportional to 281,957.69, 389,122.20 and 161,096.38

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Solution

The fourth proportional to 281,957.69, 389,122.20 and 161,096.38 is: 222,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,957.69 : 389,122.20 = 161,096.38 : x
  2. Step 2: Convert to fraction form
    281,957.69/389,122.20 = 161,096.38/x
  3. Step 3: Cross multiply
    281,957.69x = 389,122.20 × 161,096.38
  4. Step 4: Simplify right side
    281,957.69x = 62,686,177,797.64
  5. Step 5: Solve for x
    x = 62,686,177,797.64/281,957.69
  6. Step 6: Final answer
    x = 222,324.77

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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.