Finding the Fourth Proportional to 282,163.74, 389,370.45 and 154,829.28
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Solution
The fourth proportional to 282,163.74, 389,370.45 and 154,829.28 is: 213,655.90
Step by Step Solution
- Step 1: Write the proportion equation
282,163.74 : 389,370.45 = 154,829.28 : x - Step 2: Convert to fraction form
282,163.74/389,370.45 = 154,829.28/x - Step 3: Cross multiply
282,163.74x = 389,370.45 × 154,829.28 - Step 4: Simplify right side
282,163.74x = 60,285,946,426.78 - Step 5: Solve for x
x = 60,285,946,426.78/282,163.74 - Step 6: Final answer
x = 213,655.90
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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.