Finding the Fourth Proportional to 203,203.23, 280,557.44 and 126,838.63
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Solution
The fourth proportional to 203,203.23, 280,557.44 and 126,838.63 is: 175,122.81
Step by Step Solution
- Step 1: Write the proportion equation
203,203.23 : 280,557.44 = 126,838.63 : x - Step 2: Convert to fraction form
203,203.23/280,557.44 = 126,838.63/x - Step 3: Cross multiply
203,203.23x = 280,557.44 × 126,838.63 - Step 4: Simplify right side
203,203.23x = 35,585,521,325.91 - Step 5: Solve for x
x = 35,585,521,325.91/203,203.23 - Step 6: Final answer
x = 175,122.81
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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.