Finding the Fourth Proportional to 189,264.68, 261,119.30 and 121,319.11
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Solution
The fourth proportional to 189,264.68, 261,119.30 and 121,319.11 is: 167,378.09
Step by Step Solution
- Step 1: Write the proportion equation
189,264.68 : 261,119.30 = 121,319.11 : x - Step 2: Convert to fraction form
189,264.68/261,119.30 = 121,319.11/x - Step 3: Cross multiply
189,264.68x = 261,119.30 × 121,319.11 - Step 4: Simplify right side
189,264.68x = 31,678,761,079.82 - Step 5: Solve for x
x = 31,678,761,079.82/189,264.68 - Step 6: Final answer
x = 167,378.09
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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.