Finding the Fourth Proportional to 203,789.79, 305,684.47 and 133,652.70
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Solution
The fourth proportional to 203,789.79, 305,684.47 and 133,652.70 is: 200,478.91
Step by Step Solution
- Step 1: Write the proportion equation
203,789.79 : 305,684.47 = 133,652.70 : x - Step 2: Convert to fraction form
203,789.79/305,684.47 = 133,652.70/x - Step 3: Cross multiply
203,789.79x = 305,684.47 × 133,652.70 - Step 4: Simplify right side
203,789.79x = 40,855,554,763.57 - Step 5: Solve for x
x = 40,855,554,763.57/203,789.79 - Step 6: Final answer
x = 200,478.91
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1.5x scale
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.