Finding the Fourth Proportional to 479,226.09, 718,716.12 and 142,187.01
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Solution
The fourth proportional to 479,226.09, 718,716.12 and 142,187.01 is: 213,244.02
Step by Step Solution
- Step 1: Write the proportion equation
479,226.09 : 718,716.12 = 142,187.01 : x - Step 2: Convert to fraction form
479,226.09/718,716.12 = 142,187.01/x - Step 3: Cross multiply
479,226.09x = 718,716.12 × 142,187.01 - Step 4: Simplify right side
479,226.09x = 102,192,096,141.60 - Step 5: Solve for x
x = 102,192,096,141.60/479,226.09 - Step 6: Final answer
x = 213,244.02
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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.