Finding the Fourth Proportional to 306,319.74, 459,501.54 and 81,678.99
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Solution
The fourth proportional to 306,319.74, 459,501.54 and 81,678.99 is: 122,524.33
Step by Step Solution
- Step 1: Write the proportion equation
306,319.74 : 459,501.54 = 81,678.99 : x - Step 2: Convert to fraction form
306,319.74/459,501.54 = 81,678.99/x - Step 3: Cross multiply
306,319.74x = 459,501.54 × 81,678.99 - Step 4: Simplify right side
306,319.74x = 37,531,621,690.64 - Step 5: Solve for x
x = 37,531,621,690.64/306,319.74 - Step 6: Final answer
x = 122,524.33
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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.