Finding the Fourth Proportional to 328,855.79, 453,808.38 and 206,413.68
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Solution
The fourth proportional to 328,855.79, 453,808.38 and 206,413.68 is: 284,842.96
Step by Step Solution
- Step 1: Write the proportion equation
328,855.79 : 453,808.38 = 206,413.68 : x - Step 2: Convert to fraction form
328,855.79/453,808.38 = 206,413.68/x - Step 3: Cross multiply
328,855.79x = 453,808.38 × 206,413.68 - Step 4: Simplify right side
328,855.79x = 93,672,257,730.64 - Step 5: Solve for x
x = 93,672,257,730.64/328,855.79 - Step 6: Final answer
x = 284,842.96
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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.