Finding the Fourth Proportional to 225,615.84, 311,343.12 and 123,640.08
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Solution
The fourth proportional to 225,615.84, 311,343.12 and 123,640.08 is: 170,619.62
Step by Step Solution
- Step 1: Write the proportion equation
225,615.84 : 311,343.12 = 123,640.08 : x - Step 2: Convert to fraction form
225,615.84/311,343.12 = 123,640.08/x - Step 3: Cross multiply
225,615.84x = 311,343.12 × 123,640.08 - Step 4: Simplify right side
225,615.84x = 38,494,488,264.25 - Step 5: Solve for x
x = 38,494,488,264.25/225,615.84 - Step 6: Final answer
x = 170,619.62
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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.