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Finding the Fourth Proportional to 329,851.80, 494,777.70 and 130,105.80

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Solution

The fourth proportional to 329,851.80, 494,777.70 and 130,105.80 is: 195,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,851.80 : 494,777.70 = 130,105.80 : x
  2. Step 2: Convert to fraction form
    329,851.80/494,777.70 = 130,105.80/x
  3. Step 3: Cross multiply
    329,851.80x = 494,777.70 × 130,105.80
  4. Step 4: Simplify right side
    329,851.80x = 64,373,448,480.66
  5. Step 5: Solve for x
    x = 64,373,448,480.66/329,851.80
  6. Step 6: Final answer
    x = 195,158.70

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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.