Finding the Fourth Proportional to 306,861.14, 423,459.80 and 170,895.05
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Solution
The fourth proportional to 306,861.14, 423,459.80 and 170,895.05 is: 235,830.39
Step by Step Solution
- Step 1: Write the proportion equation
306,861.14 : 423,459.80 = 170,895.05 : x - Step 2: Convert to fraction form
306,861.14/423,459.80 = 170,895.05/x - Step 3: Cross multiply
306,861.14x = 423,459.80 × 170,895.05 - Step 4: Simplify right side
306,861.14x = 72,367,180,722.22 - Step 5: Solve for x
x = 72,367,180,722.22/306,861.14 - Step 6: Final answer
x = 235,830.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.