Finding the Fourth Proportional to 378,246.18, 567,498.87 and 129,103.14
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Solution
The fourth proportional to 378,246.18, 567,498.87 and 129,103.14 is: 193,698.95
Step by Step Solution
- Step 1: Write the proportion equation
378,246.18 : 567,498.87 = 129,103.14 : x - Step 2: Convert to fraction form
378,246.18/567,498.87 = 129,103.14/x - Step 3: Cross multiply
378,246.18x = 567,498.87 × 129,103.14 - Step 4: Simplify right side
378,246.18x = 73,265,886,063.45 - Step 5: Solve for x
x = 73,265,886,063.45/378,246.18 - Step 6: Final answer
x = 193,698.95
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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.