Finding the Fourth Proportional to 256,736.80, 385,170.08 and 207,266.40
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Solution
The fourth proportional to 256,736.80, 385,170.08 and 207,266.40 is: 310,951.98
Step by Step Solution
- Step 1: Write the proportion equation
256,736.80 : 385,170.08 = 207,266.40 : x - Step 2: Convert to fraction form
256,736.80/385,170.08 = 207,266.40/x - Step 3: Cross multiply
256,736.80x = 385,170.08 × 207,266.40 - Step 4: Simplify right side
256,736.80x = 79,832,815,869.31 - Step 5: Solve for x
x = 79,832,815,869.31/256,736.80 - Step 6: Final answer
x = 310,951.98
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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.