Finding the Fourth Proportional to 331,194.63, 457,111.58 and 187,968.09
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Solution
The fourth proportional to 331,194.63, 457,111.58 and 187,968.09 is: 259,431.71
Step by Step Solution
- Step 1: Write the proportion equation
331,194.63 : 457,111.58 = 187,968.09 : x - Step 2: Convert to fraction form
331,194.63/457,111.58 = 187,968.09/x - Step 3: Cross multiply
331,194.63x = 457,111.58 × 187,968.09 - Step 4: Simplify right side
331,194.63x = 85,922,389,669.64 - Step 5: Solve for x
x = 85,922,389,669.64/331,194.63 - Step 6: Final answer
x = 259,431.71
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1.5x scale
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.