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Finding the Fourth Proportional to 329,078.60, 494,136.30 and 189,110.60

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Solution

The fourth proportional to 329,078.60, 494,136.30 and 189,110.60 is: 283,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,078.60 : 494,136.30 = 189,110.60 : x
  2. Step 2: Convert to fraction form
    329,078.60/494,136.30 = 189,110.60/x
  3. Step 3: Cross multiply
    329,078.60x = 494,136.30 × 189,110.60
  4. Step 4: Simplify right side
    329,078.60x = 93,446,412,174.78
  5. Step 5: Solve for x
    x = 93,446,412,174.78/329,078.60
  6. Step 6: Final answer
    x = 283,963.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.