Finding the Fourth Proportional to 207,922.32, 286,933.01 and 112,428.99
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Solution
The fourth proportional to 207,922.32, 286,933.01 and 112,428.99 is: 155,152.12
Step by Step Solution
- Step 1: Write the proportion equation
207,922.32 : 286,933.01 = 112,428.99 : x - Step 2: Convert to fraction form
207,922.32/286,933.01 = 112,428.99/x - Step 3: Cross multiply
207,922.32x = 286,933.01 × 112,428.99 - Step 4: Simplify right side
207,922.32x = 32,259,587,949.82 - Step 5: Solve for x
x = 32,259,587,949.82/207,922.32 - Step 6: Final answer
x = 155,152.12
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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.