Finding the Fourth Proportional to 431,054.94, 646,582.46 and 131,537.09
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Solution
The fourth proportional to 431,054.94, 646,582.46 and 131,537.09 is: 197,305.65
Step by Step Solution
- Step 1: Write the proportion equation
431,054.94 : 646,582.46 = 131,537.09 : x - Step 2: Convert to fraction form
431,054.94/646,582.46 = 131,537.09/x - Step 3: Cross multiply
431,054.94x = 646,582.46 × 131,537.09 - Step 4: Simplify right side
431,054.94x = 85,049,575,233.44 - Step 5: Solve for x
x = 85,049,575,233.44/431,054.94 - Step 6: Final answer
x = 197,305.65
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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.