Finding the Fourth Proportional to 378,745.76, 522,668.76 and 208,979.88
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Solution
The fourth proportional to 378,745.76, 522,668.76 and 208,979.88 is: 288,392.02
Step by Step Solution
- Step 1: Write the proportion equation
378,745.76 : 522,668.76 = 208,979.88 : x - Step 2: Convert to fraction form
378,745.76/522,668.76 = 208,979.88/x - Step 3: Cross multiply
378,745.76x = 522,668.76 × 208,979.88 - Step 4: Simplify right side
378,745.76x = 109,227,254,744.55 - Step 5: Solve for x
x = 109,227,254,744.55/378,745.76 - Step 6: Final answer
x = 288,392.02
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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.