Home / 199,317.66-298,638.18-120,265.80

Finding the Fourth Proportional to 199,317.66, 298,638.18 and 120,265.80

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Solution

The fourth proportional to 199,317.66, 298,638.18 and 120,265.80 is: 180,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,317.66 : 298,638.18 = 120,265.80 : x
  2. Step 2: Convert to fraction form
    199,317.66/298,638.18 = 120,265.80/x
  3. Step 3: Cross multiply
    199,317.66x = 298,638.18 × 120,265.80
  4. Step 4: Simplify right side
    199,317.66x = 35,915,959,628.24
  5. Step 5: Solve for x
    x = 35,915,959,628.24/199,317.66
  6. Step 6: Final answer
    x = 180,194.57

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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.