Home / 307,845.20-462,059.40-189,747.20

Finding the Fourth Proportional to 307,845.20, 462,059.40 and 189,747.20

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Solution

The fourth proportional to 307,845.20, 462,059.40 and 189,747.20 is: 284,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,845.20 : 462,059.40 = 189,747.20 : x
  2. Step 2: Convert to fraction form
    307,845.20/462,059.40 = 189,747.20/x
  3. Step 3: Cross multiply
    307,845.20x = 462,059.40 × 189,747.20
  4. Step 4: Simplify right side
    307,845.20x = 87,674,477,383.68
  5. Step 5: Solve for x
    x = 87,674,477,383.68/307,845.20
  6. Step 6: Final answer
    x = 284,800.53

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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.