Finding the Fourth Proportional to 276,636.58, 381,762.09 and 161,986.66
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Solution
The fourth proportional to 276,636.58, 381,762.09 and 161,986.66 is: 223,543.70
Step by Step Solution
- Step 1: Write the proportion equation
276,636.58 : 381,762.09 = 161,986.66 : x - Step 2: Convert to fraction form
276,636.58/381,762.09 = 161,986.66/x - Step 3: Cross multiply
276,636.58x = 381,762.09 × 161,986.66 - Step 4: Simplify right side
276,636.58x = 61,840,365,873.72 - Step 5: Solve for x
x = 61,840,365,873.72/276,636.58 - Step 6: Final answer
x = 223,543.70
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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.