Finding the Fourth Proportional to 202,900.02, 280,091.73 and 121,257.09
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Solution
The fourth proportional to 202,900.02, 280,091.73 and 121,257.09 is: 167,388.39
Step by Step Solution
- Step 1: Write the proportion equation
202,900.02 : 280,091.73 = 121,257.09 : x - Step 2: Convert to fraction form
202,900.02/280,091.73 = 121,257.09/x - Step 3: Cross multiply
202,900.02x = 280,091.73 × 121,257.09 - Step 4: Simplify right side
202,900.02x = 33,963,108,112.87 - Step 5: Solve for x
x = 33,963,108,112.87/202,900.02 - Step 6: Final answer
x = 167,388.39
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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.