Finding the Fourth Proportional to 331,424.05, 497,168.21 and 131,699.70
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Solution
The fourth proportional to 331,424.05, 497,168.21 and 131,699.70 is: 197,562.32
Step by Step Solution
- Step 1: Write the proportion equation
331,424.05 : 497,168.21 = 131,699.70 : x - Step 2: Convert to fraction form
331,424.05/497,168.21 = 131,699.70/x - Step 3: Cross multiply
331,424.05x = 497,168.21 × 131,699.70 - Step 4: Simplify right side
331,424.05x = 65,476,904,106.54 - Step 5: Solve for x
x = 65,476,904,106.54/331,424.05 - Step 6: Final answer
x = 197,562.32
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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.