Home / 309,449.37-427,180.03-194,896.37

Finding the Fourth Proportional to 309,449.37, 427,180.03 and 194,896.37

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Solution

The fourth proportional to 309,449.37, 427,180.03 and 194,896.37 is: 269,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,449.37 : 427,180.03 = 194,896.37 : x
  2. Step 2: Convert to fraction form
    309,449.37/427,180.03 = 194,896.37/x
  3. Step 3: Cross multiply
    309,449.37x = 427,180.03 × 194,896.37
  4. Step 4: Simplify right side
    309,449.37x = 83,255,837,764.20
  5. Step 5: Solve for x
    x = 83,255,837,764.20/309,449.37
  6. Step 6: Final answer
    x = 269,045.10

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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.