Home / 309,448.26-427,178.48-194,895.25

Finding the Fourth Proportional to 309,448.26, 427,178.48 and 194,895.25

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Solution

The fourth proportional to 309,448.26, 427,178.48 and 194,895.25 is: 269,043.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,448.26 : 427,178.48 = 194,895.25 : x
  2. Step 2: Convert to fraction form
    309,448.26/427,178.48 = 194,895.25/x
  3. Step 3: Cross multiply
    309,448.26x = 427,178.48 × 194,895.25
  4. Step 4: Simplify right side
    309,448.26x = 83,255,054,611.80
  5. Step 5: Solve for x
    x = 83,255,054,611.80/309,448.26
  6. Step 6: Final answer
    x = 269,043.54

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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.