Finding the Fourth Proportional to 203,627.70, 305,587.35 and 85,383.90
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Solution
The fourth proportional to 203,627.70, 305,587.35 and 85,383.90 is: 128,136.99
Step by Step Solution
- Step 1: Write the proportion equation
203,627.70 : 305,587.35 = 85,383.90 : x - Step 2: Convert to fraction form
203,627.70/305,587.35 = 85,383.90/x - Step 3: Cross multiply
203,627.70x = 305,587.35 × 85,383.90 - Step 4: Simplify right side
203,627.70x = 26,092,239,733.67 - Step 5: Solve for x
x = 26,092,239,733.67/203,627.70 - Step 6: Final answer
x = 128,136.99
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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.