Finding the Fourth Proportional to 172,051.35, 257,951.21 and 115,751.49
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Solution
The fourth proportional to 172,051.35, 257,951.21 and 115,751.49 is: 173,542.59
Step by Step Solution
- Step 1: Write the proportion equation
172,051.35 : 257,951.21 = 115,751.49 : x - Step 2: Convert to fraction form
172,051.35/257,951.21 = 115,751.49/x - Step 3: Cross multiply
172,051.35x = 257,951.21 × 115,751.49 - Step 4: Simplify right side
172,051.35x = 29,858,236,326.05 - Step 5: Solve for x
x = 29,858,236,326.05/172,051.35 - Step 6: Final answer
x = 173,542.59
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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.