Finding the Fourth Proportional to 355,171.97, 490,154.82 and 202,213.19
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Solution
The fourth proportional to 355,171.97, 490,154.82 and 202,213.19 is: 279,064.17
Step by Step Solution
- Step 1: Write the proportion equation
355,171.97 : 490,154.82 = 202,213.19 : x - Step 2: Convert to fraction form
355,171.97/490,154.82 = 202,213.19/x - Step 3: Cross multiply
355,171.97x = 490,154.82 × 202,213.19 - Step 4: Simplify right side
355,171.97x = 99,115,769,746.08 - Step 5: Solve for x
x = 99,115,769,746.08/355,171.97 - Step 6: Final answer
x = 279,064.17
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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.