Finding the Fourth Proportional to 356,283.30, 491,678.91 and 203,318.44
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Solution
The fourth proportional to 356,283.30, 491,678.91 and 203,318.44 is: 280,583.99
Step by Step Solution
- Step 1: Write the proportion equation
356,283.30 : 491,678.91 = 203,318.44 : x - Step 2: Convert to fraction form
356,283.30/491,678.91 = 203,318.44/x - Step 3: Cross multiply
356,283.30x = 491,678.91 × 203,318.44 - Step 4: Simplify right side
356,283.30x = 99,967,387,945.51 - Step 5: Solve for x
x = 99,967,387,945.51/356,283.30 - Step 6: Final answer
x = 280,583.99
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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.