Finding the Fourth Proportional to 207,888.12, 286,885.57 and 112,394.81
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Solution
The fourth proportional to 207,888.12, 286,885.57 and 112,394.81 is: 155,104.82
Step by Step Solution
- Step 1: Write the proportion equation
207,888.12 : 286,885.57 = 112,394.81 : x - Step 2: Convert to fraction form
207,888.12/286,885.57 = 112,394.81/x - Step 3: Cross multiply
207,888.12x = 286,885.57 × 112,394.81 - Step 4: Simplify right side
207,888.12x = 32,244,448,569.92 - Step 5: Solve for x
x = 32,244,448,569.92/207,888.12 - Step 6: Final answer
x = 155,104.82
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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.