Finding the Fourth Proportional to 221,283.10, 305,398.11 and 135,224.38
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Solution
The fourth proportional to 221,283.10, 305,398.11 and 135,224.38 is: 186,626.41
Step by Step Solution
- Step 1: Write the proportion equation
221,283.10 : 305,398.11 = 135,224.38 : x - Step 2: Convert to fraction form
221,283.10/305,398.11 = 135,224.38/x - Step 3: Cross multiply
221,283.10x = 305,398.11 × 135,224.38 - Step 4: Simplify right side
221,283.10x = 41,297,270,077.92 - Step 5: Solve for x
x = 41,297,270,077.92/221,283.10 - Step 6: Final answer
x = 186,626.41
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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.