Finding the Fourth Proportional to 413.82, 571.08 and 239.18
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Solution
The fourth proportional to 413.82, 571.08 and 239.18 is: 330.07
Step by Step Solution
- Step 1: Write the proportion equation
413.82 : 571.08 = 239.18 : x - Step 2: Convert to fraction form
413.82/571.08 = 239.18/x - Step 3: Cross multiply
413.82x = 571.08 × 239.18 - Step 4: Simplify right side
413.82x = 136,588.06 - Step 5: Solve for x
x = 136,588.06/413.82 - Step 6: Final answer
x = 330.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.