Finding the Fourth Proportional to 279,021.51, 384,366.20 and 202,315.19
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Solution
The fourth proportional to 279,021.51, 384,366.20 and 202,315.19 is: 278,699.37
Step by Step Solution
- Step 1: Write the proportion equation
279,021.51 : 384,366.20 = 202,315.19 : x - Step 2: Convert to fraction form
279,021.51/384,366.20 = 202,315.19/x - Step 3: Cross multiply
279,021.51x = 384,366.20 × 202,315.19 - Step 4: Simplify right side
279,021.51x = 77,763,117,849.17 - Step 5: Solve for x
x = 77,763,117,849.17/279,021.51 - Step 6: Final answer
x = 278,699.37
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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.