Finding the Fourth Proportional to 306,107.85, 459,160.29 and 78,402.99
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Solution
The fourth proportional to 306,107.85, 459,160.29 and 78,402.99 is: 117,604.10
Step by Step Solution
- Step 1: Write the proportion equation
306,107.85 : 459,160.29 = 78,402.99 : x - Step 2: Convert to fraction form
306,107.85/459,160.29 = 78,402.99/x - Step 3: Cross multiply
306,107.85x = 459,160.29 × 78,402.99 - Step 4: Simplify right side
306,107.85x = 35,999,539,625.27 - Step 5: Solve for x
x = 35,999,539,625.27/306,107.85 - Step 6: Final answer
x = 117,604.10
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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.