Finding the Fourth Proportional to 316,274.19, 436,415.34 and 188,922.75
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Solution
The fourth proportional to 316,274.19, 436,415.34 and 188,922.75 is: 260,687.68
Step by Step Solution
- Step 1: Write the proportion equation
316,274.19 : 436,415.34 = 188,922.75 : x - Step 2: Convert to fraction form
316,274.19/436,415.34 = 188,922.75/x - Step 3: Cross multiply
316,274.19x = 436,415.34 × 188,922.75 - Step 4: Simplify right side
316,274.19x = 82,448,786,174.99 - Step 5: Solve for x
x = 82,448,786,174.99/316,274.19 - Step 6: Final answer
x = 260,687.68
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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.