Finding the Fourth Proportional to 286,294.19, 394,997.39 and 165,391.36
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Solution
The fourth proportional to 286,294.19, 394,997.39 and 165,391.36 is: 228,188.90
Step by Step Solution
- Step 1: Write the proportion equation
286,294.19 : 394,997.39 = 165,391.36 : x - Step 2: Convert to fraction form
286,294.19/394,997.39 = 165,391.36/x - Step 3: Cross multiply
286,294.19x = 394,997.39 × 165,391.36 - Step 4: Simplify right side
286,294.19x = 65,329,155,935.96 - Step 5: Solve for x
x = 65,329,155,935.96/286,294.19 - Step 6: Final answer
x = 228,188.90
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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.