Finding the Fourth Proportional to 207,477.44, 286,321.57 and 121,490.00
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Solution
The fourth proportional to 207,477.44, 286,321.57 and 121,490.00 is: 167,657.78
Step by Step Solution
- Step 1: Write the proportion equation
207,477.44 : 286,321.57 = 121,490.00 : x - Step 2: Convert to fraction form
207,477.44/286,321.57 = 121,490.00/x - Step 3: Cross multiply
207,477.44x = 286,321.57 × 121,490.00 - Step 4: Simplify right side
207,477.44x = 34,785,205,803.97 - Step 5: Solve for x
x = 34,785,205,803.97/207,477.44 - Step 6: Final answer
x = 167,657.78
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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.