Home / 281,131.03-387,922.58-167,929.75

Finding the Fourth Proportional to 281,131.03, 387,922.58 and 167,929.75

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Solution

The fourth proportional to 281,131.03, 387,922.58 and 167,929.75 is: 231,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,131.03 : 387,922.58 = 167,929.75 : x
  2. Step 2: Convert to fraction form
    281,131.03/387,922.58 = 167,929.75/x
  3. Step 3: Cross multiply
    281,131.03x = 387,922.58 × 167,929.75
  4. Step 4: Simplify right side
    281,131.03x = 65,143,741,039.11
  5. Step 5: Solve for x
    x = 65,143,741,039.11/281,131.03
  6. Step 6: Final answer
    x = 231,720.21

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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.