Finding the Fourth Proportional to 428,277.93, 642,424.19 and 162,163.77
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Solution
The fourth proportional to 428,277.93, 642,424.19 and 162,163.77 is: 243,248.42
Step by Step Solution
- Step 1: Write the proportion equation
428,277.93 : 642,424.19 = 162,163.77 : x - Step 2: Convert to fraction form
428,277.93/642,424.19 = 162,163.77/x - Step 3: Cross multiply
428,277.93x = 642,424.19 × 162,163.77 - Step 4: Simplify right side
428,277.93x = 104,177,929,439.41 - Step 5: Solve for x
x = 104,177,929,439.41/428,277.93 - Step 6: Final answer
x = 243,248.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.