Finding the Fourth Proportional to 286,214.48, 394,838.76 and 201,378.32
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Solution
The fourth proportional to 286,214.48, 394,838.76 and 201,378.32 is: 277,805.53
Step by Step Solution
- Step 1: Write the proportion equation
286,214.48 : 394,838.76 = 201,378.32 : x - Step 2: Convert to fraction form
286,214.48/394,838.76 = 201,378.32/x - Step 3: Cross multiply
286,214.48x = 394,838.76 × 201,378.32 - Step 4: Simplify right side
286,214.48x = 79,511,966,159.68 - Step 5: Solve for x
x = 79,511,966,159.68/286,214.48 - Step 6: Final answer
x = 277,805.53
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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.