Finding the Fourth Proportional to 165,557.12, 228,736.48 and 115,479.68
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Solution
The fourth proportional to 165,557.12, 228,736.48 and 115,479.68 is: 159,548.65
Step by Step Solution
- Step 1: Write the proportion equation
165,557.12 : 228,736.48 = 115,479.68 : x - Step 2: Convert to fraction form
165,557.12/228,736.48 = 115,479.68/x - Step 3: Cross multiply
165,557.12x = 228,736.48 × 115,479.68 - Step 4: Simplify right side
165,557.12x = 26,414,415,514.73 - Step 5: Solve for x
x = 26,414,415,514.73/165,557.12 - Step 6: Final answer
x = 159,548.65
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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.