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Finding the Fourth Proportional to 297,940.40, 446,910.60 and 171,969.20

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Solution

The fourth proportional to 297,940.40, 446,910.60 and 171,969.20 is: 257,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,940.40 : 446,910.60 = 171,969.20 : x
  2. Step 2: Convert to fraction form
    297,940.40/446,910.60 = 171,969.20/x
  3. Step 3: Cross multiply
    297,940.40x = 446,910.60 × 171,969.20
  4. Step 4: Simplify right side
    297,940.40x = 76,854,858,353.52
  5. Step 5: Solve for x
    x = 76,854,858,353.52/297,940.40
  6. Step 6: Final answer
    x = 257,953.80

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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.