Finding the Fourth Proportional to 189,435.48, 261,420.43 and 104,551.94
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Solution
The fourth proportional to 189,435.48, 261,420.43 and 104,551.94 is: 144,281.38
Step by Step Solution
- Step 1: Write the proportion equation
189,435.48 : 261,420.43 = 104,551.94 : x - Step 2: Convert to fraction form
189,435.48/261,420.43 = 104,551.94/x - Step 3: Cross multiply
189,435.48x = 261,420.43 × 104,551.94 - Step 4: Simplify right side
189,435.48x = 27,332,013,112.13 - Step 5: Solve for x
x = 27,332,013,112.13/189,435.48 - Step 6: Final answer
x = 144,281.38
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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.