Finding the Fourth Proportional to 207,920.41, 286,930.29 and 112,427.08
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Solution
The fourth proportional to 207,920.41, 286,930.29 and 112,427.08 is: 155,149.44
Step by Step Solution
- Step 1: Write the proportion equation
207,920.41 : 286,930.29 = 112,427.08 : x - Step 2: Convert to fraction form
207,920.41/286,930.29 = 112,427.08/x - Step 3: Cross multiply
207,920.41x = 286,930.29 × 112,427.08 - Step 4: Simplify right side
207,920.41x = 32,258,734,668.25 - Step 5: Solve for x
x = 32,258,734,668.25/207,920.41 - Step 6: Final answer
x = 155,149.44
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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.