Finding the Fourth Proportional to 206,613.10, 309,919.65 and 73,497.70
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Solution
The fourth proportional to 206,613.10, 309,919.65 and 73,497.70 is: 110,246.55
Step by Step Solution
- Step 1: Write the proportion equation
206,613.10 : 309,919.65 = 73,497.70 : x - Step 2: Convert to fraction form
206,613.10/309,919.65 = 73,497.70/x - Step 3: Cross multiply
206,613.10x = 309,919.65 × 73,497.70 - Step 4: Simplify right side
206,613.10x = 22,778,381,459.81 - Step 5: Solve for x
x = 22,778,381,459.81/206,613.10 - Step 6: Final answer
x = 110,246.55
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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.