Finding the Fourth Proportional to 230,377.91, 317,882.97 and 128,381.01
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Solution
The fourth proportional to 230,377.91, 317,882.97 and 128,381.01 is: 177,144.31
Step by Step Solution
- Step 1: Write the proportion equation
230,377.91 : 317,882.97 = 128,381.01 : x - Step 2: Convert to fraction form
230,377.91/317,882.97 = 128,381.01/x - Step 3: Cross multiply
230,377.91x = 317,882.97 × 128,381.01 - Step 4: Simplify right side
230,377.91x = 40,810,136,750.40 - Step 5: Solve for x
x = 40,810,136,750.40/230,377.91 - Step 6: Final answer
x = 177,144.31
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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.