Finding the Fourth Proportional to 313,694.86, 432,898.09 and 170,454.92
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Solution
The fourth proportional to 313,694.86, 432,898.09 and 170,454.92 is: 235,227.35
Step by Step Solution
- Step 1: Write the proportion equation
313,694.86 : 432,898.09 = 170,454.92 : x - Step 2: Convert to fraction form
313,694.86/432,898.09 = 170,454.92/x - Step 3: Cross multiply
313,694.86x = 432,898.09 × 170,454.92 - Step 4: Simplify right side
313,694.86x = 73,789,609,299.10 - Step 5: Solve for x
x = 73,789,609,299.10/313,694.86 - Step 6: Final answer
x = 235,227.35
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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.