Finding the Third Proportional to 256,506.75 and 393,711.75
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Solution
The third proportional to 256,506.75 and 393,711.75 is: 604,307.46
Step by Step Solution
- Step 1: Write the proportion equation
256,506.75 : 393,711.75 = 393,711.75 : x - Step 2: Convert to fraction form
256,506.75/393,711.75 = 393,711.75/x - Step 3: Cross multiply
256,506.75x = 393,711.75 × 393,711.75 - Step 4: Simplify right side
256,506.75x = 155,008,942,088.06 - Step 5: Solve for x
x = 155,008,942,088.06/256,506.75 - Step 6: Final answer
x = 604,307.46
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Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.