Home / 209,423.16-313,906.26-102,880.44

Finding the Fourth Proportional to 209,423.16, 313,906.26 and 102,880.44

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Solution

The fourth proportional to 209,423.16, 313,906.26 and 102,880.44 is: 154,208.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,423.16 : 313,906.26 = 102,880.44 : x
  2. Step 2: Convert to fraction form
    209,423.16/313,906.26 = 102,880.44/x
  3. Step 3: Cross multiply
    209,423.16x = 313,906.26 × 102,880.44
  4. Step 4: Simplify right side
    209,423.16x = 32,294,814,147.55
  5. Step 5: Solve for x
    x = 32,294,814,147.55/209,423.16
  6. Step 6: Final answer
    x = 154,208.42

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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.