Finding the Fourth Proportional to 387,400.48, 534,518.64 and 226,163.20
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Solution
The fourth proportional to 387,400.48, 534,518.64 and 226,163.20 is: 312,050.33
Step by Step Solution
- Step 1: Write the proportion equation
387,400.48 : 534,518.64 = 226,163.20 : x - Step 2: Convert to fraction form
387,400.48/534,518.64 = 226,163.20/x - Step 3: Cross multiply
387,400.48x = 534,518.64 × 226,163.20 - Step 4: Simplify right side
387,400.48x = 120,888,446,082.05 - Step 5: Solve for x
x = 120,888,446,082.05/387,400.48 - Step 6: Final answer
x = 312,050.33
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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.