Finding the Fourth Proportional to 312,214.92, 430,817.58 and 176,232.12
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Solution
The fourth proportional to 312,214.92, 430,817.58 and 176,232.12 is: 243,178.31
Step by Step Solution
- Step 1: Write the proportion equation
312,214.92 : 430,817.58 = 176,232.12 : x - Step 2: Convert to fraction form
312,214.92/430,817.58 = 176,232.12/x - Step 3: Cross multiply
312,214.92x = 430,817.58 × 176,232.12 - Step 4: Simplify right side
312,214.92x = 75,923,895,456.67 - Step 5: Solve for x
x = 75,923,895,456.67/312,214.92 - Step 6: Final answer
x = 243,178.31
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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.