Finding the Fourth Proportional to 309,514.26, 427,205.58 and 188,722.08
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Solution
The fourth proportional to 309,514.26, 427,205.58 and 188,722.08 is: 260,482.75
Step by Step Solution
- Step 1: Write the proportion equation
309,514.26 : 427,205.58 = 188,722.08 : x - Step 2: Convert to fraction form
309,514.26/427,205.58 = 188,722.08/x - Step 3: Cross multiply
309,514.26x = 427,205.58 × 188,722.08 - Step 4: Simplify right side
309,514.26x = 80,623,125,645.21 - Step 5: Solve for x
x = 80,623,125,645.21/309,514.26 - Step 6: Final answer
x = 260,482.75
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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.