Finding the Fourth Proportional to 203,781.80, 305,672.70 and 70,617.80
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Solution
The fourth proportional to 203,781.80, 305,672.70 and 70,617.80 is: 105,926.70
Step by Step Solution
- Step 1: Write the proportion equation
203,781.80 : 305,672.70 = 70,617.80 : x - Step 2: Convert to fraction form
203,781.80/305,672.70 = 70,617.80/x - Step 3: Cross multiply
203,781.80x = 305,672.70 × 70,617.80 - Step 4: Simplify right side
203,781.80x = 21,585,933,594.06 - Step 5: Solve for x
x = 21,585,933,594.06/203,781.80 - Step 6: Final answer
x = 105,926.70
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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.