Finding the Fourth Proportional to 395,329.53, 545,548.09 and 214,039.99
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Solution
The fourth proportional to 395,329.53, 545,548.09 and 214,039.99 is: 295,371.58
Step by Step Solution
- Step 1: Write the proportion equation
395,329.53 : 545,548.09 = 214,039.99 : x - Step 2: Convert to fraction form
395,329.53/545,548.09 = 214,039.99/x - Step 3: Cross multiply
395,329.53x = 545,548.09 × 214,039.99 - Step 4: Simplify right side
395,329.53x = 116,769,107,728.12 - Step 5: Solve for x
x = 116,769,107,728.12/395,329.53 - Step 6: Final answer
x = 295,371.58
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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.