Finding the Fourth Proportional to 285,895.99, 394,526.37 and 158,583.43
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Solution
The fourth proportional to 285,895.99, 394,526.37 and 158,583.43 is: 218,839.53
Step by Step Solution
- Step 1: Write the proportion equation
285,895.99 : 394,526.37 = 158,583.43 : x - Step 2: Convert to fraction form
285,895.99/394,526.37 = 158,583.43/x - Step 3: Cross multiply
285,895.99x = 394,526.37 × 158,583.43 - Step 4: Simplify right side
285,895.99x = 62,565,344,980.05 - Step 5: Solve for x
x = 62,565,344,980.05/285,895.99 - Step 6: Final answer
x = 218,839.53
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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.