Finding the Fourth Proportional to 202,315.20, 303,472.80 and 69,199.80
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Solution
The fourth proportional to 202,315.20, 303,472.80 and 69,199.80 is: 103,799.70
Step by Step Solution
- Step 1: Write the proportion equation
202,315.20 : 303,472.80 = 69,199.80 : x - Step 2: Convert to fraction form
202,315.20/303,472.80 = 69,199.80/x - Step 3: Cross multiply
202,315.20x = 303,472.80 × 69,199.80 - Step 4: Simplify right side
202,315.20x = 21,000,257,065.44 - Step 5: Solve for x
x = 21,000,257,065.44/202,315.20 - Step 6: Final answer
x = 103,799.70
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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.