Finding the Fourth Proportional to 207,933.72, 286,948.56 and 112,440.42
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Solution
The fourth proportional to 207,933.72, 286,948.56 and 112,440.42 is: 155,167.79
Step by Step Solution
- Step 1: Write the proportion equation
207,933.72 : 286,948.56 = 112,440.42 : x - Step 2: Convert to fraction form
207,933.72/286,948.56 = 112,440.42/x - Step 3: Cross multiply
207,933.72x = 286,948.56 × 112,440.42 - Step 4: Simplify right side
207,933.72x = 32,264,616,604.80 - Step 5: Solve for x
x = 32,264,616,604.80/207,933.72 - Step 6: Final answer
x = 155,167.79
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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.