Finding the Fourth Proportional to 276,907.30, 415,391.91 and 87,394.63
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Solution
The fourth proportional to 276,907.30, 415,391.91 and 87,394.63 is: 131,101.72
Step by Step Solution
- Step 1: Write the proportion equation
276,907.30 : 415,391.91 = 87,394.63 : x - Step 2: Convert to fraction form
276,907.30/415,391.91 = 87,394.63/x - Step 3: Cross multiply
276,907.30x = 415,391.91 × 87,394.63 - Step 4: Simplify right side
276,907.30x = 36,303,022,279.44 - Step 5: Solve for x
x = 36,303,022,279.44/276,907.30 - Step 6: Final answer
x = 131,101.72
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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.