Finding the Fourth Proportional to 213,210.25, 294,230.07 and 122,583.94
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Solution
The fourth proportional to 213,210.25, 294,230.07 and 122,583.94 is: 169,165.79
Step by Step Solution
- Step 1: Write the proportion equation
213,210.25 : 294,230.07 = 122,583.94 : x - Step 2: Convert to fraction form
213,210.25/294,230.07 = 122,583.94/x - Step 3: Cross multiply
213,210.25x = 294,230.07 × 122,583.94 - Step 4: Simplify right side
213,210.25x = 36,067,881,247.08 - Step 5: Solve for x
x = 36,067,881,247.08/213,210.25 - Step 6: Final answer
x = 169,165.79
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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.