Home / 318,846.32-439,975.34-196,319.24

Finding the Fourth Proportional to 318,846.32, 439,975.34 and 196,319.24

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Solution

The fourth proportional to 318,846.32, 439,975.34 and 196,319.24 is: 270,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,846.32 : 439,975.34 = 196,319.24 : x
  2. Step 2: Convert to fraction form
    318,846.32/439,975.34 = 196,319.24/x
  3. Step 3: Cross multiply
    318,846.32x = 439,975.34 × 196,319.24
  4. Step 4: Simplify right side
    318,846.32x = 86,375,621,186.07
  5. Step 5: Solve for x
    x = 86,375,621,186.07/318,846.32
  6. Step 6: Final answer
    x = 270,900.48

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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.