Finding the Fourth Proportional to 381,713.92, 526,781.28 and 211,963.84
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Solution
The fourth proportional to 381,713.92, 526,781.28 and 211,963.84 is: 292,519.02
Step by Step Solution
- Step 1: Write the proportion equation
381,713.92 : 526,781.28 = 211,963.84 : x - Step 2: Convert to fraction form
381,713.92/526,781.28 = 211,963.84/x - Step 3: Cross multiply
381,713.92x = 526,781.28 × 211,963.84 - Step 4: Simplify right side
381,713.92x = 111,658,582,948.92 - Step 5: Solve for x
x = 111,658,582,948.92/381,713.92 - Step 6: Final answer
x = 292,519.02
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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.