Finding the Fourth Proportional to 420,218.48, 579,884.34 and 248,192.12
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Solution
The fourth proportional to 420,218.48, 579,884.34 and 248,192.12 is: 342,494.99
Step by Step Solution
- Step 1: Write the proportion equation
420,218.48 : 579,884.34 = 248,192.12 : x - Step 2: Convert to fraction form
420,218.48/579,884.34 = 248,192.12/x - Step 3: Cross multiply
420,218.48x = 579,884.34 × 248,192.12 - Step 4: Simplify right side
420,218.48x = 143,922,723,699.40 - Step 5: Solve for x
x = 143,922,723,699.40/420,218.48 - Step 6: Final answer
x = 342,494.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.