Finding the Fourth Proportional to 252,151.11, 347,963.97 and 137,430.81
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Solution
The fourth proportional to 252,151.11, 347,963.97 and 137,430.81 is: 189,652.03
Step by Step Solution
- Step 1: Write the proportion equation
252,151.11 : 347,963.97 = 137,430.81 : x - Step 2: Convert to fraction form
252,151.11/347,963.97 = 137,430.81/x - Step 3: Cross multiply
252,151.11x = 347,963.97 × 137,430.81 - Step 4: Simplify right side
252,151.11x = 47,820,970,247.92 - Step 5: Solve for x
x = 47,820,970,247.92/252,151.11 - Step 6: Final answer
x = 189,652.03
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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.