Finding the Fourth Proportional to 253,640.10, 349,226.67 and 215,320.23
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Solution
The fourth proportional to 253,640.10, 349,226.67 and 215,320.23 is: 296,465.61
Step by Step Solution
- Step 1: Write the proportion equation
253,640.10 : 349,226.67 = 215,320.23 : x - Step 2: Convert to fraction form
253,640.10/349,226.67 = 215,320.23/x - Step 3: Cross multiply
253,640.10x = 349,226.67 × 215,320.23 - Step 4: Simplify right side
253,640.10x = 75,195,566,906.53 - Step 5: Solve for x
x = 75,195,566,906.53/253,640.10 - Step 6: Final answer
x = 296,465.61
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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.