Finding the Fourth Proportional to 189,306.26, 261,247.56 and 103,266.70
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Solution
The fourth proportional to 189,306.26, 261,247.56 and 103,266.70 is: 142,510.73
Step by Step Solution
- Step 1: Write the proportion equation
189,306.26 : 261,247.56 = 103,266.70 : x - Step 2: Convert to fraction form
189,306.26/261,247.56 = 103,266.70/x - Step 3: Cross multiply
189,306.26x = 261,247.56 × 103,266.70 - Step 4: Simplify right side
189,306.26x = 26,978,173,404.25 - Step 5: Solve for x
x = 26,978,173,404.25/189,306.26 - Step 6: Final answer
x = 142,510.73
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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.