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Finding the Fourth Proportional to 446,504.20, 669,830.10 and 206,857.60

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Solution

The fourth proportional to 446,504.20, 669,830.10 and 206,857.60 is: 310,320.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,504.20 : 669,830.10 = 206,857.60 : x
  2. Step 2: Convert to fraction form
    446,504.20/669,830.10 = 206,857.60/x
  3. Step 3: Cross multiply
    446,504.20x = 669,830.10 × 206,857.60
  4. Step 4: Simplify right side
    446,504.20x = 138,559,446,893.76
  5. Step 5: Solve for x
    x = 138,559,446,893.76/446,504.20
  6. Step 6: Final answer
    x = 310,320.59

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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.