Finding the Fourth Proportional to 215,022.78, 296,733.60 and 118,231.74
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Solution
The fourth proportional to 215,022.78, 296,733.60 and 118,231.74 is: 163,160.99
Step by Step Solution
- Step 1: Write the proportion equation
215,022.78 : 296,733.60 = 118,231.74 : x - Step 2: Convert to fraction form
215,022.78/296,733.60 = 118,231.74/x - Step 3: Cross multiply
215,022.78x = 296,733.60 × 118,231.74 - Step 4: Simplify right side
215,022.78x = 35,083,329,844.46 - Step 5: Solve for x
x = 35,083,329,844.46/215,022.78 - Step 6: Final answer
x = 163,160.99
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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.