Finding the Fourth Proportional to 189,414.24, 261,486.28 and 117,817.28
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Solution
The fourth proportional to 189,414.24, 261,486.28 and 117,817.28 is: 162,646.71
Step by Step Solution
- Step 1: Write the proportion equation
189,414.24 : 261,486.28 = 117,817.28 : x - Step 2: Convert to fraction form
189,414.24/261,486.28 = 117,817.28/x - Step 3: Cross multiply
189,414.24x = 261,486.28 × 117,817.28 - Step 4: Simplify right side
189,414.24x = 30,807,602,266.92 - Step 5: Solve for x
x = 30,807,602,266.92/189,414.24 - Step 6: Final answer
x = 162,646.71
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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.