Finding the Fourth Proportional to 438,435.80, 657,653.70 and 202,239.80
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Solution
The fourth proportional to 438,435.80, 657,653.70 and 202,239.80 is: 303,359.70
Step by Step Solution
- Step 1: Write the proportion equation
438,435.80 : 657,653.70 = 202,239.80 : x - Step 2: Convert to fraction form
438,435.80/657,653.70 = 202,239.80/x - Step 3: Cross multiply
438,435.80x = 657,653.70 × 202,239.80 - Step 4: Simplify right side
438,435.80x = 133,003,752,757.26 - Step 5: Solve for x
x = 133,003,752,757.26/438,435.80 - Step 6: Final answer
x = 303,359.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.