Finding the Fourth Proportional to 201,620.20, 302,430.30 and 198,509.80
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Solution
The fourth proportional to 201,620.20, 302,430.30 and 198,509.80 is: 297,764.70
Step by Step Solution
- Step 1: Write the proportion equation
201,620.20 : 302,430.30 = 198,509.80 : x - Step 2: Convert to fraction form
201,620.20/302,430.30 = 198,509.80/x - Step 3: Cross multiply
201,620.20x = 302,430.30 × 198,509.80 - Step 4: Simplify right side
201,620.20x = 60,035,378,366.94 - Step 5: Solve for x
x = 60,035,378,366.94/201,620.20 - Step 6: Final answer
x = 297,764.70
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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.