Finding the Fourth Proportional to 405,455.94, 608,269.77 and 121,168.62
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Solution
The fourth proportional to 405,455.94, 608,269.77 and 121,168.62 is: 181,778.59
Step by Step Solution
- Step 1: Write the proportion equation
405,455.94 : 608,269.77 = 121,168.62 : x - Step 2: Convert to fraction form
405,455.94/608,269.77 = 121,168.62/x - Step 3: Cross multiply
405,455.94x = 608,269.77 × 121,168.62 - Step 4: Simplify right side
405,455.94x = 73,703,208,618.62 - Step 5: Solve for x
x = 73,703,208,618.62/405,455.94 - Step 6: Final answer
x = 181,778.59
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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.