Finding the Fourth Proportional to 203,212.14, 280,434.99 and 112,569.49
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Solution
The fourth proportional to 203,212.14, 280,434.99 and 112,569.49 is: 155,347.14
Step by Step Solution
- Step 1: Write the proportion equation
203,212.14 : 280,434.99 = 112,569.49 : x - Step 2: Convert to fraction form
203,212.14/280,434.99 = 112,569.49/x - Step 3: Cross multiply
203,212.14x = 280,434.99 × 112,569.49 - Step 4: Simplify right side
203,212.14x = 31,568,423,802.46 - Step 5: Solve for x
x = 31,568,423,802.46/203,212.14 - Step 6: Final answer
x = 155,347.14
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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.