Finding the Fourth Proportional to 328,926.38, 453,929.40 and 201,577.37
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Solution
The fourth proportional to 328,926.38, 453,929.40 and 201,577.37 is: 278,183.51
Step by Step Solution
- Step 1: Write the proportion equation
328,926.38 : 453,929.40 = 201,577.37 : x - Step 2: Convert to fraction form
328,926.38/453,929.40 = 201,577.37/x - Step 3: Cross multiply
328,926.38x = 453,929.40 × 201,577.37 - Step 4: Simplify right side
328,926.38x = 91,501,892,348.03 - Step 5: Solve for x
x = 91,501,892,348.03/328,926.38 - Step 6: Final answer
x = 278,183.51
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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.