Finding the Fourth Proportional to 328,245.21, 490,968.14 and 201,574.17
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Solution
The fourth proportional to 328,245.21, 490,968.14 and 201,574.17 is: 301,501.72
Step by Step Solution
- Step 1: Write the proportion equation
328,245.21 : 490,968.14 = 201,574.17 : x - Step 2: Convert to fraction form
328,245.21/490,968.14 = 201,574.17/x - Step 3: Cross multiply
328,245.21x = 490,968.14 × 201,574.17 - Step 4: Simplify right side
328,245.21x = 98,966,494,309.07 - Step 5: Solve for x
x = 98,966,494,309.07/328,245.21 - Step 6: Final answer
x = 301,501.72
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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.