Finding the Fourth Proportional to 199,317.20, 274,988.68 and 127,736.64
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Solution
The fourth proportional to 199,317.20, 274,988.68 and 127,736.64 is: 176,232.31
Step by Step Solution
- Step 1: Write the proportion equation
199,317.20 : 274,988.68 = 127,736.64 : x - Step 2: Convert to fraction form
199,317.20/274,988.68 = 127,736.64/x - Step 3: Cross multiply
199,317.20x = 274,988.68 × 127,736.64 - Step 4: Simplify right side
199,317.20x = 35,126,130,021.24 - Step 5: Solve for x
x = 35,126,130,021.24/199,317.20 - Step 6: Final answer
x = 176,232.31
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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.