Finding the Fourth Proportional to 230,353.17, 317,882.58 and 128,387.94
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Solution
The fourth proportional to 230,353.17, 317,882.58 and 128,387.94 is: 177,172.68
Step by Step Solution
- Step 1: Write the proportion equation
230,353.17 : 317,882.58 = 128,387.94 : x - Step 2: Convert to fraction form
230,353.17/317,882.58 = 128,387.94/x - Step 3: Cross multiply
230,353.17x = 317,882.58 × 128,387.94 - Step 4: Simplify right side
230,353.17x = 40,812,287,934.57 - Step 5: Solve for x
x = 40,812,287,934.57/230,353.17 - Step 6: Final answer
x = 177,172.68
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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.