Finding the Fourth Proportional to 245,822.16, 339,266.93 and 138,413.12
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Solution
The fourth proportional to 245,822.16, 339,266.93 and 138,413.12 is: 191,028.32
Step by Step Solution
- Step 1: Write the proportion equation
245,822.16 : 339,266.93 = 138,413.12 : x - Step 2: Convert to fraction form
245,822.16/339,266.93 = 138,413.12/x - Step 3: Cross multiply
245,822.16x = 339,266.93 × 138,413.12 - Step 4: Simplify right side
245,822.16x = 46,958,994,203.38 - Step 5: Solve for x
x = 46,958,994,203.38/245,822.16 - Step 6: Final answer
x = 191,028.32
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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.