Finding the Fourth Proportional to 207,925.27, 286,936.68 and 112,431.74
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Solution
The fourth proportional to 207,925.27, 286,936.68 and 112,431.74 is: 155,155.70
Step by Step Solution
- Step 1: Write the proportion equation
207,925.27 : 286,936.68 = 112,431.74 : x - Step 2: Convert to fraction form
207,925.27/286,936.68 = 112,431.74/x - Step 3: Cross multiply
207,925.27x = 286,936.68 × 112,431.74 - Step 4: Simplify right side
207,925.27x = 32,260,790,202.22 - Step 5: Solve for x
x = 32,260,790,202.22/207,925.27 - Step 6: Final answer
x = 155,155.70
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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.