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Finding the Fourth Proportional to 446,485.89, 669,734.37 and 130,949.31

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Solution

The fourth proportional to 446,485.89, 669,734.37 and 130,949.31 is: 196,425.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,485.89 : 669,734.37 = 130,949.31 : x
  2. Step 2: Convert to fraction form
    446,485.89/669,734.37 = 130,949.31/x
  3. Step 3: Cross multiply
    446,485.89x = 669,734.37 × 130,949.31
  4. Step 4: Simplify right side
    446,485.89x = 87,701,253,634.78
  5. Step 5: Solve for x
    x = 87,701,253,634.78/446,485.89
  6. Step 6: Final answer
    x = 196,425.59

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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.