Home / 209,132.97-312,878.28-161,387.34

Finding the Fourth Proportional to 209,132.97, 312,878.28 and 161,387.34

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Solution

The fourth proportional to 209,132.97, 312,878.28 and 161,387.34 is: 241,447.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,132.97 : 312,878.28 = 161,387.34 : x
  2. Step 2: Convert to fraction form
    209,132.97/312,878.28 = 161,387.34/x
  3. Step 3: Cross multiply
    209,132.97x = 312,878.28 × 161,387.34
  4. Step 4: Simplify right side
    209,132.97x = 50,494,593,352.98
  5. Step 5: Solve for x
    x = 50,494,593,352.98/209,132.97
  6. Step 6: Final answer
    x = 241,447.31

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1.5x scale

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.