Finding the Fourth Proportional to 381,856.99, 526,904.13 and 220,680.94
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Solution
The fourth proportional to 381,856.99, 526,904.13 and 220,680.94 is: 304,505.88
Step by Step Solution
- Step 1: Write the proportion equation
381,856.99 : 526,904.13 = 220,680.94 : x - Step 2: Convert to fraction form
381,856.99/526,904.13 = 220,680.94/x - Step 3: Cross multiply
381,856.99x = 526,904.13 × 220,680.94 - Step 4: Simplify right side
381,856.99x = 116,277,698,698.28 - Step 5: Solve for x
x = 116,277,698,698.28/381,856.99 - Step 6: Final answer
x = 304,505.88
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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.