Finding the Fourth Proportional to 307,920.20, 461,880.30 and 202,857.80
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Solution
The fourth proportional to 307,920.20, 461,880.30 and 202,857.80 is: 304,286.70
Step by Step Solution
- Step 1: Write the proportion equation
307,920.20 : 461,880.30 = 202,857.80 : x - Step 2: Convert to fraction form
307,920.20/461,880.30 = 202,857.80/x - Step 3: Cross multiply
307,920.20x = 461,880.30 × 202,857.80 - Step 4: Simplify right side
307,920.20x = 93,696,021,521.34 - Step 5: Solve for x
x = 93,696,021,521.34/307,920.20 - Step 6: Final answer
x = 304,286.70
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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.