Finding the Fourth Proportional to 203,531.40, 305,297.10 and 140,545.80
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Solution
The fourth proportional to 203,531.40, 305,297.10 and 140,545.80 is: 210,818.70
Step by Step Solution
- Step 1: Write the proportion equation
203,531.40 : 305,297.10 = 140,545.80 : x - Step 2: Convert to fraction form
203,531.40/305,297.10 = 140,545.80/x - Step 3: Cross multiply
203,531.40x = 305,297.10 × 140,545.80 - Step 4: Simplify right side
203,531.40x = 42,908,225,157.18 - Step 5: Solve for x
x = 42,908,225,157.18/203,531.40 - Step 6: Final answer
x = 210,818.70
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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.