Home / 235,181.72-324,685.39-154,842.78

Finding the Fourth Proportional to 235,181.72, 324,685.39 and 154,842.78

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Solution

The fourth proportional to 235,181.72, 324,685.39 and 154,842.78 is: 213,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,181.72 : 324,685.39 = 154,842.78 : x
  2. Step 2: Convert to fraction form
    235,181.72/324,685.39 = 154,842.78/x
  3. Step 3: Cross multiply
    235,181.72x = 324,685.39 × 154,842.78
  4. Step 4: Simplify right side
    235,181.72x = 50,275,189,418.25
  5. Step 5: Solve for x
    x = 50,275,189,418.25/235,181.72
  6. Step 6: Final answer
    x = 213,771.67

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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.