Finding the Fourth Proportional to 318,355.26, 439,105.46 and 270,277.70
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Solution
The fourth proportional to 318,355.26, 439,105.46 and 270,277.70 is: 372,792.38
Step by Step Solution
- Step 1: Write the proportion equation
318,355.26 : 439,105.46 = 270,277.70 : x - Step 2: Convert to fraction form
318,355.26/439,105.46 = 270,277.70/x - Step 3: Cross multiply
318,355.26x = 439,105.46 × 270,277.70 - Step 4: Simplify right side
318,355.26x = 118,680,413,786.24 - Step 5: Solve for x
x = 118,680,413,786.24/318,355.26 - Step 6: Final answer
x = 372,792.38
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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.