Finding the Fourth Proportional to 438,769.40, 657,959.70 and 202,184.60
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Solution
The fourth proportional to 438,769.40, 657,959.70 and 202,184.60 is: 303,187.32
Step by Step Solution
- Step 1: Write the proportion equation
438,769.40 : 657,959.70 = 202,184.60 : x - Step 2: Convert to fraction form
438,769.40/657,959.70 = 202,184.60/x - Step 3: Cross multiply
438,769.40x = 657,959.70 × 202,184.60 - Step 4: Simplify right side
438,769.40x = 133,029,318,760.62 - Step 5: Solve for x
x = 133,029,318,760.62/438,769.40 - Step 6: Final answer
x = 303,187.32
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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.