Finding the Fourth Proportional to 355,612.97, 490,418.36 and 233,060.71
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Solution
The fourth proportional to 355,612.97, 490,418.36 and 233,060.71 is: 321,409.12
Step by Step Solution
- Step 1: Write the proportion equation
355,612.97 : 490,418.36 = 233,060.71 : x - Step 2: Convert to fraction form
355,612.97/490,418.36 = 233,060.71/x - Step 3: Cross multiply
355,612.97x = 490,418.36 × 233,060.71 - Step 4: Simplify right side
355,612.97x = 114,297,251,178.64 - Step 5: Solve for x
x = 114,297,251,178.64/355,612.97 - Step 6: Final answer
x = 321,409.12
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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.