Finding the Fourth Proportional to 311,860.19, 467,703.42 and 131,883.46
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Solution
The fourth proportional to 311,860.19, 467,703.42 and 131,883.46 is: 197,788.45
Step by Step Solution
- Step 1: Write the proportion equation
311,860.19 : 467,703.42 = 131,883.46 : x - Step 2: Convert to fraction form
311,860.19/467,703.42 = 131,883.46/x - Step 3: Cross multiply
311,860.19x = 467,703.42 × 131,883.46 - Step 4: Simplify right side
311,860.19x = 61,682,343,619.61 - Step 5: Solve for x
x = 61,682,343,619.61/311,860.19 - Step 6: Final answer
x = 197,788.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.