Finding the Fourth Proportional to 378,477.97, 567,074.28 and 228,402.91
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Solution
The fourth proportional to 378,477.97, 567,074.28 and 228,402.91 is: 342,216.53
Step by Step Solution
- Step 1: Write the proportion equation
378,477.97 : 567,074.28 = 228,402.91 : x - Step 2: Convert to fraction form
378,477.97/567,074.28 = 228,402.91/x - Step 3: Cross multiply
378,477.97x = 567,074.28 × 228,402.91 - Step 4: Simplify right side
378,477.97x = 129,521,415,738.16 - Step 5: Solve for x
x = 129,521,415,738.16/378,477.97 - Step 6: Final answer
x = 342,216.53
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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.