Finding the Fourth Proportional to 395,328.05, 545,551.99 and 214,039.96
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Solution
The fourth proportional to 395,328.05, 545,551.99 and 214,039.96 is: 295,374.75
Step by Step Solution
- Step 1: Write the proportion equation
395,328.05 : 545,551.99 = 214,039.96 : x - Step 2: Convert to fraction form
395,328.05/545,551.99 = 214,039.96/x - Step 3: Cross multiply
395,328.05x = 545,551.99 × 214,039.96 - Step 4: Simplify right side
395,328.05x = 116,769,922,319.56 - Step 5: Solve for x
x = 116,769,922,319.56/395,328.05 - Step 6: Final answer
x = 295,374.75
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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.