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Finding the Fourth Proportional to 329,794.12, 494,649.60 and 140,330.26

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Solution

The fourth proportional to 329,794.12, 494,649.60 and 140,330.26 is: 210,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,794.12 : 494,649.60 = 140,330.26 : x
  2. Step 2: Convert to fraction form
    329,794.12/494,649.60 = 140,330.26/x
  3. Step 3: Cross multiply
    329,794.12x = 494,649.60 × 140,330.26
  4. Step 4: Simplify right side
    329,794.12x = 69,414,306,976.90
  5. Step 5: Solve for x
    x = 69,414,306,976.90/329,794.12
  6. Step 6: Final answer
    x = 210,477.70

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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.