Finding the Fourth Proportional to 221,963.63, 306,309.81 and 121,361.63
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Solution
The fourth proportional to 221,963.63, 306,309.81 and 121,361.63 is: 167,479.05
Step by Step Solution
- Step 1: Write the proportion equation
221,963.63 : 306,309.81 = 121,361.63 : x - Step 2: Convert to fraction form
221,963.63/306,309.81 = 121,361.63/x - Step 3: Cross multiply
221,963.63x = 306,309.81 × 121,361.63 - Step 4: Simplify right side
221,963.63x = 37,174,257,826.59 - Step 5: Solve for x
x = 37,174,257,826.59/221,963.63 - Step 6: Final answer
x = 167,479.05
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1.5x scale
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.