Finding the Fourth Proportional to 203,629.74, 305,432.10 and 91,279.74
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Solution
The fourth proportional to 203,629.74, 305,432.10 and 91,279.74 is: 136,914.00
Step by Step Solution
- Step 1: Write the proportion equation
203,629.74 : 305,432.10 = 91,279.74 : x - Step 2: Convert to fraction form
203,629.74/305,432.10 = 91,279.74/x - Step 3: Cross multiply
203,629.74x = 305,432.10 × 91,279.74 - Step 4: Simplify right side
203,629.74x = 27,879,762,675.65 - Step 5: Solve for x
x = 27,879,762,675.65/203,629.74 - Step 6: Final answer
x = 136,914.00
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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.