Finding the Fourth Proportional to 189,614.24, 261,307.90 and 135,805.84
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Solution
The fourth proportional to 189,614.24, 261,307.90 and 135,805.84 is: 187,154.40
Step by Step Solution
- Step 1: Write the proportion equation
189,614.24 : 261,307.90 = 135,805.84 : x - Step 2: Convert to fraction form
189,614.24/261,307.90 = 135,805.84/x - Step 3: Cross multiply
189,614.24x = 261,307.90 × 135,805.84 - Step 4: Simplify right side
189,614.24x = 35,487,138,858.14 - Step 5: Solve for x
x = 35,487,138,858.14/189,614.24 - Step 6: Final answer
x = 187,154.40
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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.