Finding the Fourth Proportional to 209,317.44, 313,990.56 and 69,174.48
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Solution
The fourth proportional to 209,317.44, 313,990.56 and 69,174.48 is: 103,766.48
Step by Step Solution
- Step 1: Write the proportion equation
209,317.44 : 313,990.56 = 69,174.48 : x - Step 2: Convert to fraction form
209,317.44/313,990.56 = 69,174.48/x - Step 3: Cross multiply
209,317.44x = 313,990.56 × 69,174.48 - Step 4: Simplify right side
209,317.44x = 21,720,133,712.91 - Step 5: Solve for x
x = 21,720,133,712.91/209,317.44 - Step 6: Final answer
x = 103,766.48
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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.