Finding the Fourth Proportional to 206,397.36, 309,596.49 and 56,639.70
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Solution
The fourth proportional to 206,397.36, 309,596.49 and 56,639.70 is: 84,959.67
Step by Step Solution
- Step 1: Write the proportion equation
206,397.36 : 309,596.49 = 56,639.70 : x - Step 2: Convert to fraction form
206,397.36/309,596.49 = 56,639.70/x - Step 3: Cross multiply
206,397.36x = 309,596.49 × 56,639.70 - Step 4: Simplify right side
206,397.36x = 17,535,452,314.65 - Step 5: Solve for x
x = 17,535,452,314.65/206,397.36 - Step 6: Final answer
x = 84,959.67
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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.