Home / 281,901.10-422,022.12-188,174.38

Finding the Fourth Proportional to 281,901.10, 422,022.12 and 188,174.38

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Solution

The fourth proportional to 281,901.10, 422,022.12 and 188,174.38 is: 281,707.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,901.10 : 422,022.12 = 188,174.38 : x
  2. Step 2: Convert to fraction form
    281,901.10/422,022.12 = 188,174.38/x
  3. Step 3: Cross multiply
    281,901.10x = 422,022.12 × 188,174.38
  4. Step 4: Simplify right side
    281,901.10x = 79,413,750,777.29
  5. Step 5: Solve for x
    x = 79,413,750,777.29/281,901.10
  6. Step 6: Final answer
    x = 281,707.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.