Finding the Fourth Proportional to 219,413.09, 302,789.99 and 123,918.14
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Solution
The fourth proportional to 219,413.09, 302,789.99 and 123,918.14 is: 171,006.99
Step by Step Solution
- Step 1: Write the proportion equation
219,413.09 : 302,789.99 = 123,918.14 : x - Step 2: Convert to fraction form
219,413.09/302,789.99 = 123,918.14/x - Step 3: Cross multiply
219,413.09x = 302,789.99 × 123,918.14 - Step 4: Simplify right side
219,413.09x = 37,521,170,237.88 - Step 5: Solve for x
x = 37,521,170,237.88/219,413.09 - Step 6: Final answer
x = 171,006.99
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1.5x scale
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.