Finding the Fourth Proportional to 640,997.49, 961,550.91 and 167,682.09
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Solution
The fourth proportional to 640,997.49, 961,550.91 and 167,682.09 is: 251,537.44
Step by Step Solution
- Step 1: Write the proportion equation
640,997.49 : 961,550.91 = 167,682.09 : x - Step 2: Convert to fraction form
640,997.49/961,550.91 = 167,682.09/x - Step 3: Cross multiply
640,997.49x = 961,550.91 × 167,682.09 - Step 4: Simplify right side
640,997.49x = 161,234,866,230.20 - Step 5: Solve for x
x = 161,234,866,230.20/640,997.49 - Step 6: Final answer
x = 251,537.44
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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.