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Finding the Fourth Proportional to 340,504.20, 469,880.52 and 195,205.80

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Solution

The fourth proportional to 340,504.20, 469,880.52 and 195,205.80 is: 269,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,504.20 : 469,880.52 = 195,205.80 : x
  2. Step 2: Convert to fraction form
    340,504.20/469,880.52 = 195,205.80/x
  3. Step 3: Cross multiply
    340,504.20x = 469,880.52 × 195,205.80
  4. Step 4: Simplify right side
    340,504.20x = 91,723,402,811.02
  5. Step 5: Solve for x
    x = 91,723,402,811.02/340,504.20
  6. Step 6: Final answer
    x = 269,375.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.