Finding the Fourth Proportional to 138,243.98, 207,446.57 and 58,277.05
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Solution
The fourth proportional to 138,243.98, 207,446.57 and 58,277.05 is: 87,449.55
Step by Step Solution
- Step 1: Write the proportion equation
138,243.98 : 207,446.57 = 58,277.05 : x - Step 2: Convert to fraction form
138,243.98/207,446.57 = 58,277.05/x - Step 3: Cross multiply
138,243.98x = 207,446.57 × 58,277.05 - Step 4: Simplify right side
138,243.98x = 12,089,374,707.64 - Step 5: Solve for x
x = 12,089,374,707.64/138,243.98 - Step 6: Final answer
x = 87,449.55
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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.