Finding the Fourth Proportional to 306,278.13, 422,664.17 and 170,309.17
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Solution
The fourth proportional to 306,278.13, 422,664.17 and 170,309.17 is: 235,026.84
Step by Step Solution
- Step 1: Write the proportion equation
306,278.13 : 422,664.17 = 170,309.17 : x - Step 2: Convert to fraction form
306,278.13/422,664.17 = 170,309.17/x - Step 3: Cross multiply
306,278.13x = 422,664.17 × 170,309.17 - Step 4: Simplify right side
306,278.13x = 71,983,582,073.23 - Step 5: Solve for x
x = 71,983,582,073.23/306,278.13 - Step 6: Final answer
x = 235,026.84
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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.