Home / 209,819.49-289,464.21-146,194.19

Finding the Fourth Proportional to 209,819.49, 289,464.21 and 146,194.19

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Solution

The fourth proportional to 209,819.49, 289,464.21 and 146,194.19 is: 201,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,819.49 : 289,464.21 = 146,194.19 : x
  2. Step 2: Convert to fraction form
    209,819.49/289,464.21 = 146,194.19/x
  3. Step 3: Cross multiply
    209,819.49x = 289,464.21 × 146,194.19
  4. Step 4: Simplify right side
    209,819.49x = 42,317,984,267.62
  5. Step 5: Solve for x
    x = 42,317,984,267.62/209,819.49
  6. Step 6: Final answer
    x = 201,687.58

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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.