Finding the Fourth Proportional to 399,703.07, 551,591.69 and 218,414.99
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Solution
The fourth proportional to 399,703.07, 551,591.69 and 218,414.99 is: 301,413.48
Step by Step Solution
- Step 1: Write the proportion equation
399,703.07 : 551,591.69 = 218,414.99 : x - Step 2: Convert to fraction form
399,703.07/551,591.69 = 218,414.99/x - Step 3: Cross multiply
399,703.07x = 551,591.69 × 218,414.99 - Step 4: Simplify right side
399,703.07x = 120,475,893,742.34 - Step 5: Solve for x
x = 120,475,893,742.34/399,703.07 - Step 6: Final answer
x = 301,413.48
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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.