Finding the Fourth Proportional to 299,728.67, 413,620.74 and 163,759.70
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Solution
The fourth proportional to 299,728.67, 413,620.74 and 163,759.70 is: 225,985.74
Step by Step Solution
- Step 1: Write the proportion equation
299,728.67 : 413,620.74 = 163,759.70 : x - Step 2: Convert to fraction form
299,728.67/413,620.74 = 163,759.70/x - Step 3: Cross multiply
299,728.67x = 413,620.74 × 163,759.70 - Step 4: Simplify right side
299,728.67x = 67,734,405,409.28 - Step 5: Solve for x
x = 67,734,405,409.28/299,728.67 - Step 6: Final answer
x = 225,985.74
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.