Finding the Third Proportional to 149,871 and 321,000
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Solution
The third proportional to 149,871 and 321,000 is: 687,531.28
Step by Step Solution
- Step 1: Write the proportion equation
149,871 : 321,000 = 321,000 : x - Step 2: Convert to fraction form
149,871/321,000 = 321,000/x - Step 3: Cross multiply
149,871x = 321,000 × 321,000 - Step 4: Simplify right side
149,871x = 103,041,000,000 - Step 5: Solve for x
x = 103,041,000,000/149,871 - Step 6: Final answer
x = 687,531.28
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Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.