Finding the Fourth Proportional to 213,407.93, 294,508.88 and 117,920.81
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Solution
The fourth proportional to 213,407.93, 294,508.88 and 117,920.81 is: 162,733.99
Step by Step Solution
- Step 1: Write the proportion equation
213,407.93 : 294,508.88 = 117,920.81 : x - Step 2: Convert to fraction form
213,407.93/294,508.88 = 117,920.81/x - Step 3: Cross multiply
213,407.93x = 294,508.88 × 117,920.81 - Step 4: Simplify right side
213,407.93x = 34,728,723,619.64 - Step 5: Solve for x
x = 34,728,723,619.64/213,407.93 - Step 6: Final answer
x = 162,733.99
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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.