Finding the Fourth Proportional to 189,270.24, 261,184.08 and 108,640.98
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Solution
The fourth proportional to 189,270.24, 261,184.08 and 108,640.98 is: 149,919.47
Step by Step Solution
- Step 1: Write the proportion equation
189,270.24 : 261,184.08 = 108,640.98 : x - Step 2: Convert to fraction form
189,270.24/261,184.08 = 108,640.98/x - Step 3: Cross multiply
189,270.24x = 261,184.08 × 108,640.98 - Step 4: Simplify right side
189,270.24x = 28,375,294,411.60 - Step 5: Solve for x
x = 28,375,294,411.60/189,270.24 - Step 6: Final answer
x = 149,919.47
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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.