Finding the Fourth Proportional to 217,308.25, 299,819.37 and 136,816.12
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Solution
The fourth proportional to 217,308.25, 299,819.37 and 136,816.12 is: 188,764.68
Step by Step Solution
- Step 1: Write the proportion equation
217,308.25 : 299,819.37 = 136,816.12 : x - Step 2: Convert to fraction form
217,308.25/299,819.37 = 136,816.12/x - Step 3: Cross multiply
217,308.25x = 299,819.37 × 136,816.12 - Step 4: Simplify right side
217,308.25x = 41,020,122,904.24 - Step 5: Solve for x
x = 41,020,122,904.24/217,308.25 - Step 6: Final answer
x = 188,764.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.