Finding the Fourth Proportional to 381,383.96, 526,308.18 and 211,617.68
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Solution
The fourth proportional to 381,383.96, 526,308.18 and 211,617.68 is: 292,031.46
Step by Step Solution
- Step 1: Write the proportion equation
381,383.96 : 526,308.18 = 211,617.68 : x - Step 2: Convert to fraction form
381,383.96/526,308.18 = 211,617.68/x - Step 3: Cross multiply
381,383.96x = 526,308.18 × 211,617.68 - Step 4: Simplify right side
381,383.96x = 111,376,116,016.62 - Step 5: Solve for x
x = 111,376,116,016.62/381,383.96 - Step 6: Final answer
x = 292,031.46
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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.