Finding the Fourth Proportional to 230,250.34, 317,755.28 and 128,275.74
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Solution
The fourth proportional to 230,250.34, 317,755.28 and 128,275.74 is: 177,025.99
Step by Step Solution
- Step 1: Write the proportion equation
230,250.34 : 317,755.28 = 128,275.74 : x - Step 2: Convert to fraction form
230,250.34/317,755.28 = 128,275.74/x - Step 3: Cross multiply
230,250.34x = 317,755.28 × 128,275.74 - Step 4: Simplify right side
230,250.34x = 40,760,293,680.91 - Step 5: Solve for x
x = 40,760,293,680.91/230,250.34 - Step 6: Final answer
x = 177,025.99
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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.