Finding the Fourth Proportional to 381,793.01, 526,811.12 and 220,663.05
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Solution
The fourth proportional to 381,793.01, 526,811.12 and 220,663.05 is: 304,478.46
Step by Step Solution
- Step 1: Write the proportion equation
381,793.01 : 526,811.12 = 220,663.05 : x - Step 2: Convert to fraction form
381,793.01/526,811.12 = 220,663.05/x - Step 3: Cross multiply
381,793.01x = 526,811.12 × 220,663.05 - Step 4: Simplify right side
381,793.01x = 116,247,746,261.75 - Step 5: Solve for x
x = 116,247,746,261.75/381,793.01 - Step 6: Final answer
x = 304,478.46
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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.