Finding the Fourth Proportional to 160,369.19, 240,387.69 and 131,991.08
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Solution
The fourth proportional to 160,369.19, 240,387.69 and 131,991.08 is: 197,849.91
Step by Step Solution
- Step 1: Write the proportion equation
160,369.19 : 240,387.69 = 131,991.08 : x - Step 2: Convert to fraction form
160,369.19/240,387.69 = 131,991.08/x - Step 3: Cross multiply
160,369.19x = 240,387.69 × 131,991.08 - Step 4: Simplify right side
160,369.19x = 31,729,029,619.87 - Step 5: Solve for x
x = 31,729,029,619.87/160,369.19 - Step 6: Final answer
x = 197,849.91
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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.