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Finding the Fourth Proportional to 329,883.60, 494,728.20 and 130,137.60

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Solution

The fourth proportional to 329,883.60, 494,728.20 and 130,137.60 is: 195,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,883.60 : 494,728.20 = 130,137.60 : x
  2. Step 2: Convert to fraction form
    329,883.60/494,728.20 = 130,137.60/x
  3. Step 3: Cross multiply
    329,883.60x = 494,728.20 × 130,137.60
  4. Step 4: Simplify right side
    329,883.60x = 64,382,740,600.32
  5. Step 5: Solve for x
    x = 64,382,740,600.32/329,883.60
  6. Step 6: Final answer
    x = 195,168.06

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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.