Finding the Fourth Proportional to 256,750.40, 385,125.60 and 168,276.80
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Solution
The fourth proportional to 256,750.40, 385,125.60 and 168,276.80 is: 252,415.20
Step by Step Solution
- Step 1: Write the proportion equation
256,750.40 : 385,125.60 = 168,276.80 : x - Step 2: Convert to fraction form
256,750.40/385,125.60 = 168,276.80/x - Step 3: Cross multiply
256,750.40x = 385,125.60 × 168,276.80 - Step 4: Simplify right side
256,750.40x = 64,807,703,566.08 - Step 5: Solve for x
x = 64,807,703,566.08/256,750.40 - Step 6: Final answer
x = 252,415.20
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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.