Home / 319,108.46-440,515.19-227,286.86

Finding the Fourth Proportional to 319,108.46, 440,515.19 and 227,286.86

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Solution

The fourth proportional to 319,108.46, 440,515.19 and 227,286.86 is: 313,759.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,108.46 : 440,515.19 = 227,286.86 : x
  2. Step 2: Convert to fraction form
    319,108.46/440,515.19 = 227,286.86/x
  3. Step 3: Cross multiply
    319,108.46x = 440,515.19 × 227,286.86
  4. Step 4: Simplify right side
    319,108.46x = 100,123,312,683.05
  5. Step 5: Solve for x
    x = 100,123,312,683.05/319,108.46
  6. Step 6: Final answer
    x = 313,759.51

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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.