Finding the Fourth Proportional to 217,668.09, 326,628.18 and 91,297.08
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Solution
The fourth proportional to 217,668.09, 326,628.18 and 91,297.08 is: 136,998.49
Step by Step Solution
- Step 1: Write the proportion equation
217,668.09 : 326,628.18 = 91,297.08 : x - Step 2: Convert to fraction form
217,668.09/326,628.18 = 91,297.08/x - Step 3: Cross multiply
217,668.09x = 326,628.18 × 91,297.08 - Step 4: Simplify right side
217,668.09x = 29,820,199,079.71 - Step 5: Solve for x
x = 29,820,199,079.71/217,668.09 - Step 6: Final answer
x = 136,998.49
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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.