Finding the Fourth Proportional to 407,075.09, 561,781.44 and 225,774.81
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Solution
The fourth proportional to 407,075.09, 561,781.44 and 225,774.81 is: 311,579.12
Step by Step Solution
- Step 1: Write the proportion equation
407,075.09 : 561,781.44 = 225,774.81 : x - Step 2: Convert to fraction form
407,075.09/561,781.44 = 225,774.81/x - Step 3: Cross multiply
407,075.09x = 561,781.44 × 225,774.81 - Step 4: Simplify right side
407,075.09x = 126,836,097,877.53 - Step 5: Solve for x
x = 126,836,097,877.53/407,075.09 - Step 6: Final answer
x = 311,579.12
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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.