Finding the Fourth Proportional to 251,145.12, 346,578.84 and 137,965.44
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Solution
The fourth proportional to 251,145.12, 346,578.84 and 137,965.44 is: 190,391.52
Step by Step Solution
- Step 1: Write the proportion equation
251,145.12 : 346,578.84 = 137,965.44 : x - Step 2: Convert to fraction form
251,145.12/346,578.84 = 137,965.44/x - Step 3: Cross multiply
251,145.12x = 346,578.84 × 137,965.44 - Step 4: Simplify right side
251,145.12x = 47,815,902,155.29 - Step 5: Solve for x
x = 47,815,902,155.29/251,145.12 - Step 6: Final answer
x = 190,391.52
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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.