Finding the Fourth Proportional to 228,387.98, 315,167.36 and 126,413.63
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Solution
The fourth proportional to 228,387.98, 315,167.36 and 126,413.63 is: 174,446.35
Step by Step Solution
- Step 1: Write the proportion equation
228,387.98 : 315,167.36 = 126,413.63 : x - Step 2: Convert to fraction form
228,387.98/315,167.36 = 126,413.63/x - Step 3: Cross multiply
228,387.98x = 315,167.36 × 126,413.63 - Step 4: Simplify right side
228,387.98x = 39,841,449,403.05 - Step 5: Solve for x
x = 39,841,449,403.05/228,387.98 - Step 6: Final answer
x = 174,446.35
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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.