Finding the Fourth Proportional to 285,441.25, 393,908.93 and 158,125.09
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Solution
The fourth proportional to 285,441.25, 393,908.93 and 158,125.09 is: 218,212.63
Step by Step Solution
- Step 1: Write the proportion equation
285,441.25 : 393,908.93 = 158,125.09 : x - Step 2: Convert to fraction form
285,441.25/393,908.93 = 158,125.09/x - Step 3: Cross multiply
285,441.25x = 393,908.93 × 158,125.09 - Step 4: Simplify right side
285,441.25x = 62,286,885,008.05 - Step 5: Solve for x
x = 62,286,885,008.05/285,441.25 - Step 6: Final answer
x = 218,212.63
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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.