Finding the Fourth Proportional to 427,129.28, 589,407.36 and 236,144.96
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Solution
The fourth proportional to 427,129.28, 589,407.36 and 236,144.96 is: 325,862.88
Step by Step Solution
- Step 1: Write the proportion equation
427,129.28 : 589,407.36 = 236,144.96 : x - Step 2: Convert to fraction form
427,129.28/589,407.36 = 236,144.96/x - Step 3: Cross multiply
427,129.28x = 589,407.36 × 236,144.96 - Step 4: Simplify right side
427,129.28x = 139,185,577,450.91 - Step 5: Solve for x
x = 139,185,577,450.91/427,129.28 - Step 6: Final answer
x = 325,862.88
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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.