Finding the Fourth Proportional to 328,201.20, 492,301.80 and 328,201.20
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Solution
The fourth proportional to 328,201.20, 492,301.80 and 328,201.20 is: 492,301.80
Step by Step Solution
- Step 1: Write the proportion equation
328,201.20 : 492,301.80 = 328,201.20 : x - Step 2: Convert to fraction form
328,201.20/492,301.80 = 328,201.20/x - Step 3: Cross multiply
328,201.20x = 492,301.80 × 328,201.20 - Step 4: Simplify right side
328,201.20x = 161,574,041,522.16 - Step 5: Solve for x
x = 161,574,041,522.16/328,201.20 - Step 6: Final answer
x = 492,301.80
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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.