Home / 309,198.84-426,778.38-181,915.44

Finding the Fourth Proportional to 309,198.84, 426,778.38 and 181,915.44

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Solution

The fourth proportional to 309,198.84, 426,778.38 and 181,915.44 is: 251,092.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,198.84 : 426,778.38 = 181,915.44 : x
  2. Step 2: Convert to fraction form
    309,198.84/426,778.38 = 181,915.44/x
  3. Step 3: Cross multiply
    309,198.84x = 426,778.38 × 181,915.44
  4. Step 4: Simplify right side
    309,198.84x = 77,637,576,780.19
  5. Step 5: Solve for x
    x = 77,637,576,780.19/309,198.84
  6. Step 6: Final answer
    x = 251,092.72

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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.