Finding the Fourth Proportional to 418,235.67, 626,921.84 and 165,413.68
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Solution
The fourth proportional to 418,235.67, 626,921.84 and 165,413.68 is: 247,949.79
Step by Step Solution
- Step 1: Write the proportion equation
418,235.67 : 626,921.84 = 165,413.68 : x - Step 2: Convert to fraction form
418,235.67/626,921.84 = 165,413.68/x - Step 3: Cross multiply
418,235.67x = 626,921.84 × 165,413.68 - Step 4: Simplify right side
418,235.67x = 103,701,447,473.00 - Step 5: Solve for x
x = 103,701,447,473.00/418,235.67 - Step 6: Final answer
x = 247,949.79
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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.