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Finding the Fourth Proportional to 329,957.60, 494,936.40 and 274,661.60

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Solution

The fourth proportional to 329,957.60, 494,936.40 and 274,661.60 is: 411,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,957.60 : 494,936.40 = 274,661.60 : x
  2. Step 2: Convert to fraction form
    329,957.60/494,936.40 = 274,661.60/x
  3. Step 3: Cross multiply
    329,957.60x = 494,936.40 × 274,661.60
  4. Step 4: Simplify right side
    329,957.60x = 135,940,023,522.24
  5. Step 5: Solve for x
    x = 135,940,023,522.24/329,957.60
  6. Step 6: Final answer
    x = 411,992.40

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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.