Finding the Fourth Proportional to 310,206.09, 427,975.38 and 202,838.97
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Solution
The fourth proportional to 310,206.09, 427,975.38 and 202,838.97 is: 279,846.49
Step by Step Solution
- Step 1: Write the proportion equation
310,206.09 : 427,975.38 = 202,838.97 : x - Step 2: Convert to fraction form
310,206.09/427,975.38 = 202,838.97/x - Step 3: Cross multiply
310,206.09x = 427,975.38 × 202,838.97 - Step 4: Simplify right side
310,206.09x = 86,810,085,264.56 - Step 5: Solve for x
x = 86,810,085,264.56/310,206.09 - Step 6: Final answer
x = 279,846.49
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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.