Finding the Third Proportional to 256,855.50 and 402,915.75
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Solution
The third proportional to 256,855.50 and 402,915.75 is: 632,032.80
Step by Step Solution
- Step 1: Write the proportion equation
256,855.50 : 402,915.75 = 402,915.75 : x - Step 2: Convert to fraction form
256,855.50/402,915.75 = 402,915.75/x - Step 3: Cross multiply
256,855.50x = 402,915.75 × 402,915.75 - Step 4: Simplify right side
256,855.50x = 162,341,101,598.06 - Step 5: Solve for x
x = 162,341,101,598.06/256,855.50 - Step 6: Final answer
x = 632,032.80
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Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.