Finding the Fourth Proportional to 329,420.08, 494,130.12 and 80,099.92
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Solution
The fourth proportional to 329,420.08, 494,130.12 and 80,099.92 is: 120,149.88
Step by Step Solution
- Step 1: Write the proportion equation
329,420.08 : 494,130.12 = 80,099.92 : x - Step 2: Convert to fraction form
329,420.08/494,130.12 = 80,099.92/x - Step 3: Cross multiply
329,420.08x = 494,130.12 × 80,099.92 - Step 4: Simplify right side
329,420.08x = 39,579,783,081.59 - Step 5: Solve for x
x = 39,579,783,081.59/329,420.08 - Step 6: Final answer
x = 120,149.88
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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.