Finding the Fourth Proportional to 212,895.09, 293,809.73 and 123,471.09
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Solution
The fourth proportional to 212,895.09, 293,809.73 and 123,471.09 is: 170,398.52
Step by Step Solution
- Step 1: Write the proportion equation
212,895.09 : 293,809.73 = 123,471.09 : x - Step 2: Convert to fraction form
212,895.09/293,809.73 = 123,471.09/x - Step 3: Cross multiply
212,895.09x = 293,809.73 × 123,471.09 - Step 4: Simplify right side
212,895.09x = 36,277,006,455.33 - Step 5: Solve for x
x = 36,277,006,455.33/212,895.09 - Step 6: Final answer
x = 170,398.52
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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.