Finding the Fourth Proportional to 318,139.48, 477,135.42 and 140,549.68
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Solution
The fourth proportional to 318,139.48, 477,135.42 and 140,549.68 is: 210,791.92
Step by Step Solution
- Step 1: Write the proportion equation
318,139.48 : 477,135.42 = 140,549.68 : x - Step 2: Convert to fraction form
318,139.48/477,135.42 = 140,549.68/x - Step 3: Cross multiply
318,139.48x = 477,135.42 × 140,549.68 - Step 4: Simplify right side
318,139.48x = 67,061,230,597.67 - Step 5: Solve for x
x = 67,061,230,597.67/318,139.48 - Step 6: Final answer
x = 210,791.92
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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.