Finding the Fourth Proportional to 256,925.20, 385,387.80 and 182,129.80
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Solution
The fourth proportional to 256,925.20, 385,387.80 and 182,129.80 is: 273,194.70
Step by Step Solution
- Step 1: Write the proportion equation
256,925.20 : 385,387.80 = 182,129.80 : x - Step 2: Convert to fraction form
256,925.20/385,387.80 = 182,129.80/x - Step 3: Cross multiply
256,925.20x = 385,387.80 × 182,129.80 - Step 4: Simplify right side
256,925.20x = 70,190,602,936.44 - Step 5: Solve for x
x = 70,190,602,936.44/256,925.20 - Step 6: Final answer
x = 273,194.70
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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.