Finding the Fourth Proportional to 189,495.12, 284,092.74 and 71,153.28
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Solution
The fourth proportional to 189,495.12, 284,092.74 and 71,153.28 is: 106,673.62
Step by Step Solution
- Step 1: Write the proportion equation
189,495.12 : 284,092.74 = 71,153.28 : x - Step 2: Convert to fraction form
189,495.12/284,092.74 = 71,153.28/x - Step 3: Cross multiply
189,495.12x = 284,092.74 × 71,153.28 - Step 4: Simplify right side
189,495.12x = 20,214,130,275.19 - Step 5: Solve for x
x = 20,214,130,275.19/189,495.12 - Step 6: Final answer
x = 106,673.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.