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Finding the Fourth Proportional to 446,505.20, 669,831.60 and 206,858.60

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Solution

The fourth proportional to 446,505.20, 669,831.60 and 206,858.60 is: 310,322.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,505.20 : 669,831.60 = 206,858.60 : x
  2. Step 2: Convert to fraction form
    446,505.20/669,831.60 = 206,858.60/x
  3. Step 3: Cross multiply
    446,505.20x = 669,831.60 × 206,858.60
  4. Step 4: Simplify right side
    446,505.20x = 138,560,427,011.76
  5. Step 5: Solve for x
    x = 138,560,427,011.76/446,505.20
  6. Step 6: Final answer
    x = 310,322.09

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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.