Finding the Fourth Proportional to 413.63, 619.66 and 207.96
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Solution
The fourth proportional to 413.63, 619.66 and 207.96 is: 311.54
Step by Step Solution
- Step 1: Write the proportion equation
413.63 : 619.66 = 207.96 : x - Step 2: Convert to fraction form
413.63/619.66 = 207.96/x - Step 3: Cross multiply
413.63x = 619.66 × 207.96 - Step 4: Simplify right side
413.63x = 128,863.97 - Step 5: Solve for x
x = 128,863.97/413.63 - Step 6: Final answer
x = 311.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.