Finding the Fourth Proportional to 203,925.20, 305,887.80 and 119,725.70
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Solution
The fourth proportional to 203,925.20, 305,887.80 and 119,725.70 is: 179,588.55
Step by Step Solution
- Step 1: Write the proportion equation
203,925.20 : 305,887.80 = 119,725.70 : x - Step 2: Convert to fraction form
203,925.20/305,887.80 = 119,725.70/x - Step 3: Cross multiply
203,925.20x = 305,887.80 × 119,725.70 - Step 4: Simplify right side
203,925.20x = 36,622,630,976.46 - Step 5: Solve for x
x = 36,622,630,976.46/203,925.20 - Step 6: Final answer
x = 179,588.55
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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.