Home / 209,441.27-311,792.93-208,195.70

Finding the Fourth Proportional to 209,441.27, 311,792.93 and 208,195.70

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Solution

The fourth proportional to 209,441.27, 311,792.93 and 208,195.70 is: 309,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,441.27 : 311,792.93 = 208,195.70 : x
  2. Step 2: Convert to fraction form
    209,441.27/311,792.93 = 208,195.70/x
  3. Step 3: Cross multiply
    209,441.27x = 311,792.93 × 208,195.70
  4. Step 4: Simplify right side
    209,441.27x = 64,913,944,716.46
  5. Step 5: Solve for x
    x = 64,913,944,716.46/209,441.27
  6. Step 6: Final answer
    x = 309,938.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.