Finding the Fourth Proportional to 386,123.19, 532,259.34 and 271,079.09
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Solution
The fourth proportional to 386,123.19, 532,259.34 and 271,079.09 is: 373,674.47
Step by Step Solution
- Step 1: Write the proportion equation
386,123.19 : 532,259.34 = 271,079.09 : x - Step 2: Convert to fraction form
386,123.19/532,259.34 = 271,079.09/x - Step 3: Cross multiply
386,123.19x = 532,259.34 × 271,079.09 - Step 4: Simplify right side
386,123.19x = 144,284,375,849.33 - Step 5: Solve for x
x = 144,284,375,849.33/386,123.19 - Step 6: Final answer
x = 373,674.47
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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.