Finding the Fourth Proportional to 221,759.92, 306,029.64 and 121,160.08
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Solution
The fourth proportional to 221,759.92, 306,029.64 and 121,160.08 is: 167,201.43
Step by Step Solution
- Step 1: Write the proportion equation
221,759.92 : 306,029.64 = 121,160.08 : x - Step 2: Convert to fraction form
221,759.92/306,029.64 = 121,160.08/x - Step 3: Cross multiply
221,759.92x = 306,029.64 × 121,160.08 - Step 4: Simplify right side
221,759.92x = 37,078,575,664.77 - Step 5: Solve for x
x = 37,078,575,664.77/221,759.92 - Step 6: Final answer
x = 167,201.43
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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.