Finding the Fourth Proportional to 306,074.75, 459,138.59 and 84,458.75
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Solution
The fourth proportional to 306,074.75, 459,138.59 and 84,458.75 is: 126,695.43
Step by Step Solution
- Step 1: Write the proportion equation
306,074.75 : 459,138.59 = 84,458.75 : x - Step 2: Convert to fraction form
306,074.75/459,138.59 = 84,458.75/x - Step 3: Cross multiply
306,074.75x = 459,138.59 × 84,458.75 - Step 4: Simplify right side
306,074.75x = 38,778,271,388.16 - Step 5: Solve for x
x = 38,778,271,388.16/306,074.75 - Step 6: Final answer
x = 126,695.43
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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.