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Finding the Fourth Proportional to 329,891.60, 494,740.20 and 130,145.60

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Solution

The fourth proportional to 329,891.60, 494,740.20 and 130,145.60 is: 195,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,891.60 : 494,740.20 = 130,145.60 : x
  2. Step 2: Convert to fraction form
    329,891.60/494,740.20 = 130,145.60/x
  3. Step 3: Cross multiply
    329,891.60x = 494,740.20 × 130,145.60
  4. Step 4: Simplify right side
    329,891.60x = 64,388,260,173.12
  5. Step 5: Solve for x
    x = 64,388,260,173.12/329,891.60
  6. Step 6: Final answer
    x = 195,180.05

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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.