Finding the Fourth Proportional to 145,879.23, 218,855.75 and 40,698.12
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Solution
The fourth proportional to 145,879.23, 218,855.75 and 40,698.12 is: 61,057.48
Step by Step Solution
- Step 1: Write the proportion equation
145,879.23 : 218,855.75 = 40,698.12 : x - Step 2: Convert to fraction form
145,879.23/218,855.75 = 40,698.12/x - Step 3: Cross multiply
145,879.23x = 218,855.75 × 40,698.12 - Step 4: Simplify right side
145,879.23x = 8,907,017,576.19 - Step 5: Solve for x
x = 8,907,017,576.19/145,879.23 - Step 6: Final answer
x = 61,057.48
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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.