Finding the Fourth Proportional to 382,087.19, 527,261.09 and 212,317.67
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Solution
The fourth proportional to 382,087.19, 527,261.09 and 212,317.67 is: 292,987.70
Step by Step Solution
- Step 1: Write the proportion equation
382,087.19 : 527,261.09 = 212,317.67 : x - Step 2: Convert to fraction form
382,087.19/527,261.09 = 212,317.67/x - Step 3: Cross multiply
382,087.19x = 527,261.09 × 212,317.67 - Step 4: Simplify right side
382,087.19x = 111,946,846,367.03 - Step 5: Solve for x
x = 111,946,846,367.03/382,087.19 - Step 6: Final answer
x = 292,987.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.