Finding the Fourth Proportional to 230,229.29, 317,687.50 and 128,229.05
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Solution
The fourth proportional to 230,229.29, 317,687.50 and 128,229.05 is: 176,939.98
Step by Step Solution
- Step 1: Write the proportion equation
230,229.29 : 317,687.50 = 128,229.05 : x - Step 2: Convert to fraction form
230,229.29/317,687.50 = 128,229.05/x - Step 3: Cross multiply
230,229.29x = 317,687.50 × 128,229.05 - Step 4: Simplify right side
230,229.29x = 40,736,767,276.38 - Step 5: Solve for x
x = 40,736,767,276.38/230,229.29 - Step 6: Final answer
x = 176,939.98
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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.