Finding the Fourth Proportional to 221,701.40, 305,850.74 and 135,664.51
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Solution
The fourth proportional to 221,701.40, 305,850.74 and 135,664.51 is: 187,157.55
Step by Step Solution
- Step 1: Write the proportion equation
221,701.40 : 305,850.74 = 135,664.51 : x - Step 2: Convert to fraction form
221,701.40/305,850.74 = 135,664.51/x - Step 3: Cross multiply
221,701.40x = 305,850.74 × 135,664.51 - Step 4: Simplify right side
221,701.40x = 41,493,090,775.24 - Step 5: Solve for x
x = 41,493,090,775.24/221,701.40 - Step 6: Final answer
x = 187,157.55
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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.