Finding the Fourth Proportional to 262,864.13, 394,409.19 and 85,425.53
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Solution
The fourth proportional to 262,864.13, 394,409.19 and 85,425.53 is: 128,175.02
Step by Step Solution
- Step 1: Write the proportion equation
262,864.13 : 394,409.19 = 85,425.53 : x - Step 2: Convert to fraction form
262,864.13/394,409.19 = 85,425.53/x - Step 3: Cross multiply
262,864.13x = 394,409.19 × 85,425.53 - Step 4: Simplify right side
262,864.13x = 33,692,614,092.62 - Step 5: Solve for x
x = 33,692,614,092.62/262,864.13 - Step 6: Final answer
x = 128,175.02
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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.