Finding the Fourth Proportional to 371,892.34, 513,214.82 and 202,126.87
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Solution
The fourth proportional to 371,892.34, 513,214.82 and 202,126.87 is: 278,936.92
Step by Step Solution
- Step 1: Write the proportion equation
371,892.34 : 513,214.82 = 202,126.87 : x - Step 2: Convert to fraction form
371,892.34/513,214.82 = 202,126.87/x - Step 3: Cross multiply
371,892.34x = 513,214.82 × 202,126.87 - Step 4: Simplify right side
371,892.34x = 103,734,505,204.21 - Step 5: Solve for x
x = 103,734,505,204.21/371,892.34 - Step 6: Final answer
x = 278,936.92
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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.