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Finding the Fourth Proportional to 329,745.80, 494,618.70 and 163,512.20

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Solution

The fourth proportional to 329,745.80, 494,618.70 and 163,512.20 is: 245,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,745.80 : 494,618.70 = 163,512.20 : x
  2. Step 2: Convert to fraction form
    329,745.80/494,618.70 = 163,512.20/x
  3. Step 3: Cross multiply
    329,745.80x = 494,618.70 × 163,512.20
  4. Step 4: Simplify right side
    329,745.80x = 80,876,191,798.14
  5. Step 5: Solve for x
    x = 80,876,191,798.14/329,745.80
  6. Step 6: Final answer
    x = 245,268.30

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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.