Finding the Fourth Proportional to 328,197.78, 449,959.29 and 322,219.37
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Solution
The fourth proportional to 328,197.78, 449,959.29 and 322,219.37 is: 441,762.88
Step by Step Solution
- Step 1: Write the proportion equation
328,197.78 : 449,959.29 = 322,219.37 : x - Step 2: Convert to fraction form
328,197.78/449,959.29 = 322,219.37/x - Step 3: Cross multiply
328,197.78x = 449,959.29 × 322,219.37 - Step 4: Simplify right side
328,197.78x = 144,985,596,699.65 - Step 5: Solve for x
x = 144,985,596,699.65/328,197.78 - Step 6: Final answer
x = 441,762.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.