Home / 309,716.02-427,591.32-195,092.92

Finding the Fourth Proportional to 309,716.02, 427,591.32 and 195,092.92

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Solution

The fourth proportional to 309,716.02, 427,591.32 and 195,092.92 is: 269,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,716.02 : 427,591.32 = 195,092.92 : x
  2. Step 2: Convert to fraction form
    309,716.02/427,591.32 = 195,092.92/x
  3. Step 3: Cross multiply
    309,716.02x = 427,591.32 × 195,092.92
  4. Step 4: Simplify right side
    309,716.02x = 83,420,039,185.45
  5. Step 5: Solve for x
    x = 83,420,039,185.45/309,716.02
  6. Step 6: Final answer
    x = 269,343.64

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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.