Finding the Fourth Proportional to 285,670.08, 394,243.68 and 158,351.04
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Solution
The fourth proportional to 285,670.08, 394,243.68 and 158,351.04 is: 218,534.95
Step by Step Solution
- Step 1: Write the proportion equation
285,670.08 : 394,243.68 = 158,351.04 : x - Step 2: Convert to fraction form
285,670.08/394,243.68 = 158,351.04/x - Step 3: Cross multiply
285,670.08x = 394,243.68 × 158,351.04 - Step 4: Simplify right side
285,670.08x = 62,428,896,741.43 - Step 5: Solve for x
x = 62,428,896,741.43/285,670.08 - Step 6: Final answer
x = 218,534.95
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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.