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Finding the Fourth Proportional to 329,793.40, 494,690.10 and 130,120.30

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Solution

The fourth proportional to 329,793.40, 494,690.10 and 130,120.30 is: 195,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,793.40 : 494,690.10 = 130,120.30 : x
  2. Step 2: Convert to fraction form
    329,793.40/494,690.10 = 130,120.30/x
  3. Step 3: Cross multiply
    329,793.40x = 494,690.10 × 130,120.30
  4. Step 4: Simplify right side
    329,793.40x = 64,369,224,219.03
  5. Step 5: Solve for x
    x = 64,369,224,219.03/329,793.40
  6. Step 6: Final answer
    x = 195,180.45

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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.