Finding the Fourth Proportional to 304,957.68, 420,802.20 and 170,821.68
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Solution
The fourth proportional to 304,957.68, 420,802.20 and 170,821.68 is: 235,711.85
Step by Step Solution
- Step 1: Write the proportion equation
304,957.68 : 420,802.20 = 170,821.68 : x - Step 2: Convert to fraction form
304,957.68/420,802.20 = 170,821.68/x - Step 3: Cross multiply
304,957.68x = 420,802.20 × 170,821.68 - Step 4: Simplify right side
304,957.68x = 71,882,138,751.70 - Step 5: Solve for x
x = 71,882,138,751.70/304,957.68 - Step 6: Final answer
x = 235,711.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.