Finding the Fourth Proportional to 248,603.13, 343,046.61 and 139,690.17
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Solution
The fourth proportional to 248,603.13, 343,046.61 and 139,690.17 is: 192,757.99
Step by Step Solution
- Step 1: Write the proportion equation
248,603.13 : 343,046.61 = 139,690.17 : x - Step 2: Convert to fraction form
248,603.13/343,046.61 = 139,690.17/x - Step 3: Cross multiply
248,603.13x = 343,046.61 × 139,690.17 - Step 4: Simplify right side
248,603.13x = 47,920,239,268.82 - Step 5: Solve for x
x = 47,920,239,268.82/248,603.13 - Step 6: Final answer
x = 192,757.99
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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.