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Finding the Fourth Proportional to 329,772.37, 494,657.19 and 140,203.21

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Solution

The fourth proportional to 329,772.37, 494,657.19 and 140,203.21 is: 210,304.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,772.37 : 494,657.19 = 140,203.21 : x
  2. Step 2: Convert to fraction form
    329,772.37/494,657.19 = 140,203.21/x
  3. Step 3: Cross multiply
    329,772.37x = 494,657.19 × 140,203.21
  4. Step 4: Simplify right side
    329,772.37x = 69,352,525,186.56
  5. Step 5: Solve for x
    x = 69,352,525,186.56/329,772.37
  6. Step 6: Final answer
    x = 210,304.23

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Similar ratio
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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.