Finding the Fourth Proportional to 225,203.42, 310,893.19 and 129,691.67
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Solution
The fourth proportional to 225,203.42, 310,893.19 and 129,691.67 is: 179,039.26
Step by Step Solution
- Step 1: Write the proportion equation
225,203.42 : 310,893.19 = 129,691.67 : x - Step 2: Convert to fraction form
225,203.42/310,893.19 = 129,691.67/x - Step 3: Cross multiply
225,203.42x = 310,893.19 × 129,691.67 - Step 4: Simplify right side
225,203.42x = 40,320,255,124.03 - Step 5: Solve for x
x = 40,320,255,124.03/225,203.42 - Step 6: Final answer
x = 179,039.26
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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.