Finding the Fourth Proportional to 251,480.10, 347,044.99 and 136,761.21
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Solution
The fourth proportional to 251,480.10, 347,044.99 and 136,761.21 is: 188,731.80
Step by Step Solution
- Step 1: Write the proportion equation
251,480.10 : 347,044.99 = 136,761.21 : x - Step 2: Convert to fraction form
251,480.10/347,044.99 = 136,761.21/x - Step 3: Cross multiply
251,480.10x = 347,044.99 × 136,761.21 - Step 4: Simplify right side
251,480.10x = 47,462,291,021.61 - Step 5: Solve for x
x = 47,462,291,021.61/251,480.10 - Step 6: Final answer
x = 188,731.80
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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.