Finding the Fourth Proportional to 382,626.64, 528,024.36 and 212,857.12
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Solution
The fourth proportional to 382,626.64, 528,024.36 and 212,857.12 is: 293,742.60
Step by Step Solution
- Step 1: Write the proportion equation
382,626.64 : 528,024.36 = 212,857.12 : x - Step 2: Convert to fraction form
382,626.64/528,024.36 = 212,857.12/x - Step 3: Cross multiply
382,626.64x = 528,024.36 × 212,857.12 - Step 4: Simplify right side
382,626.64x = 112,393,744,559.44 - Step 5: Solve for x
x = 112,393,744,559.44/382,626.64 - Step 6: Final answer
x = 293,742.60
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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.