Finding the Fourth Proportional to 189,339.48, 261,288.45 and 104,456.53
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Solution
The fourth proportional to 189,339.48, 261,288.45 and 104,456.53 is: 144,149.99
Step by Step Solution
- Step 1: Write the proportion equation
189,339.48 : 261,288.45 = 104,456.53 : x - Step 2: Convert to fraction form
189,339.48/261,288.45 = 104,456.53/x - Step 3: Cross multiply
189,339.48x = 261,288.45 × 104,456.53 - Step 4: Simplify right side
189,339.48x = 27,293,284,816.08 - Step 5: Solve for x
x = 27,293,284,816.08/189,339.48 - Step 6: Final answer
x = 144,149.99
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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.