Finding the Fourth Proportional to 286,514.10, 395,438.16 and 165,728.82
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Solution
The fourth proportional to 286,514.10, 395,438.16 and 165,728.82 is: 228,733.94
Step by Step Solution
- Step 1: Write the proportion equation
286,514.10 : 395,438.16 = 165,728.82 : x - Step 2: Convert to fraction form
286,514.10/395,438.16 = 165,728.82/x - Step 3: Cross multiply
286,514.10x = 395,438.16 × 165,728.82 - Step 4: Simplify right side
286,514.10x = 65,535,499,639.77 - Step 5: Solve for x
x = 65,535,499,639.77/286,514.10 - Step 6: Final answer
x = 228,733.94
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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.