Finding the Fourth Proportional to 378,808.99, 522,767.45 and 206,738.06
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Solution
The fourth proportional to 378,808.99, 522,767.45 and 206,738.06 is: 285,304.55
Step by Step Solution
- Step 1: Write the proportion equation
378,808.99 : 522,767.45 = 206,738.06 : x - Step 2: Convert to fraction form
378,808.99/522,767.45 = 206,738.06/x - Step 3: Cross multiply
378,808.99x = 522,767.45 × 206,738.06 - Step 4: Simplify right side
378,808.99x = 108,075,926,347.16 - Step 5: Solve for x
x = 108,075,926,347.16/378,808.99 - Step 6: Final answer
x = 285,304.55
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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.