Home / 319,183.90-440,334.16-210,147.58

Finding the Fourth Proportional to 319,183.90, 440,334.16 and 210,147.58

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Solution

The fourth proportional to 319,183.90, 440,334.16 and 210,147.58 is: 289,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,183.90 : 440,334.16 = 210,147.58 : x
  2. Step 2: Convert to fraction form
    319,183.90/440,334.16 = 210,147.58/x
  3. Step 3: Cross multiply
    319,183.90x = 440,334.16 × 210,147.58
  4. Step 4: Simplify right side
    319,183.90x = 92,535,158,115.33
  5. Step 5: Solve for x
    x = 92,535,158,115.33/319,183.90
  6. Step 6: Final answer
    x = 289,911.73

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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.