Finding the Fourth Proportional to 405,320.09, 559,343.49 and 221,562.41
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Solution
The fourth proportional to 405,320.09, 559,343.49 and 221,562.41 is: 305,757.09
Step by Step Solution
- Step 1: Write the proportion equation
405,320.09 : 559,343.49 = 221,562.41 : x - Step 2: Convert to fraction form
405,320.09/559,343.49 = 221,562.41/x - Step 3: Cross multiply
405,320.09x = 559,343.49 × 221,562.41 - Step 4: Simplify right side
405,320.09x = 123,929,491,662.21 - Step 5: Solve for x
x = 123,929,491,662.21/405,320.09 - Step 6: Final answer
x = 305,757.09
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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.