Finding the Fourth Proportional to 203,415.70, 305,123.55 and 55,671.70
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Solution
The fourth proportional to 203,415.70, 305,123.55 and 55,671.70 is: 83,507.55
Step by Step Solution
- Step 1: Write the proportion equation
203,415.70 : 305,123.55 = 55,671.70 : x - Step 2: Convert to fraction form
203,415.70/305,123.55 = 55,671.70/x - Step 3: Cross multiply
203,415.70x = 305,123.55 × 55,671.70 - Step 4: Simplify right side
203,415.70x = 16,986,746,738.54 - Step 5: Solve for x
x = 16,986,746,738.54/203,415.70 - Step 6: Final answer
x = 83,507.55
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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.