Finding the Fourth Proportional to 378,433.08, 522,364.14 and 225,519.26
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Solution
The fourth proportional to 378,433.08, 522,364.14 and 225,519.26 is: 311,291.95
Step by Step Solution
- Step 1: Write the proportion equation
378,433.08 : 522,364.14 = 225,519.26 : x - Step 2: Convert to fraction form
378,433.08/522,364.14 = 225,519.26/x - Step 3: Cross multiply
378,433.08x = 522,364.14 × 225,519.26 - Step 4: Simplify right side
378,433.08x = 117,803,171,691.52 - Step 5: Solve for x
x = 117,803,171,691.52/378,433.08 - Step 6: Final answer
x = 311,291.95
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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.