Finding the Fourth Proportional to 309,939.51, 427,722.84 and 173,983.26
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Solution
The fourth proportional to 309,939.51, 427,722.84 and 173,983.26 is: 240,100.44
Step by Step Solution
- Step 1: Write the proportion equation
309,939.51 : 427,722.84 = 173,983.26 : x - Step 2: Convert to fraction form
309,939.51/427,722.84 = 173,983.26/x - Step 3: Cross multiply
309,939.51x = 427,722.84 × 173,983.26 - Step 4: Simplify right side
309,939.51x = 74,416,614,079.66 - Step 5: Solve for x
x = 74,416,614,079.66/309,939.51 - Step 6: Final answer
x = 240,100.44
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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.