Finding the Fourth Proportional to 207,863.92, 286,851.12 and 112,369.76
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Solution
The fourth proportional to 207,863.92, 286,851.12 and 112,369.76 is: 155,069.68
Step by Step Solution
- Step 1: Write the proportion equation
207,863.92 : 286,851.12 = 112,369.76 : x - Step 2: Convert to fraction form
207,863.92/286,851.12 = 112,369.76/x - Step 3: Cross multiply
207,863.92x = 286,851.12 × 112,369.76 - Step 4: Simplify right side
207,863.92x = 32,233,391,510.13 - Step 5: Solve for x
x = 32,233,391,510.13/207,863.92 - Step 6: Final answer
x = 155,069.68
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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.