Home / 281,889.07-422,004.16-188,162.35

Finding the Fourth Proportional to 281,889.07, 422,004.16 and 188,162.35

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Solution

The fourth proportional to 281,889.07, 422,004.16 and 188,162.35 is: 281,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,889.07 : 422,004.16 = 188,162.35 : x
  2. Step 2: Convert to fraction form
    281,889.07/422,004.16 = 188,162.35/x
  3. Step 3: Cross multiply
    281,889.07x = 422,004.16 × 188,162.35
  4. Step 4: Simplify right side
    281,889.07x = 79,405,294,455.38
  5. Step 5: Solve for x
    x = 79,405,294,455.38/281,889.07
  6. Step 6: Final answer
    x = 281,689.87

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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.