Home / 289,939.84-400,136.96-162,623.64

Finding the Fourth Proportional to 289,939.84, 400,136.96 and 162,623.64

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Solution

The fourth proportional to 289,939.84, 400,136.96 and 162,623.64 is: 224,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,939.84 : 400,136.96 = 162,623.64 : x
  2. Step 2: Convert to fraction form
    289,939.84/400,136.96 = 162,623.64/x
  3. Step 3: Cross multiply
    289,939.84x = 400,136.96 × 162,623.64
  4. Step 4: Simplify right side
    289,939.84x = 65,071,728,933.73
  5. Step 5: Solve for x
    x = 65,071,728,933.73/289,939.84
  6. Step 6: Final answer
    x = 224,431.83

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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.