Finding the Fourth Proportional to 394,191.84, 543,971.28 and 224,393.12
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Solution
The fourth proportional to 394,191.84, 543,971.28 and 224,393.12 is: 309,654.84
Step by Step Solution
- Step 1: Write the proportion equation
394,191.84 : 543,971.28 = 224,393.12 : x - Step 2: Convert to fraction form
394,191.84/543,971.28 = 224,393.12/x - Step 3: Cross multiply
394,191.84x = 543,971.28 × 224,393.12 - Step 4: Simplify right side
394,191.84x = 122,063,412,709.59 - Step 5: Solve for x
x = 122,063,412,709.59/394,191.84 - Step 6: Final answer
x = 309,654.84
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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.