Finding the Fourth Proportional to 313,633.42, 432,812.97 and 170,392.21
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Solution
The fourth proportional to 313,633.42, 432,812.97 and 170,392.21 is: 235,140.62
Step by Step Solution
- Step 1: Write the proportion equation
313,633.42 : 432,812.97 = 170,392.21 : x - Step 2: Convert to fraction form
313,633.42/432,812.97 = 170,392.21/x - Step 3: Cross multiply
313,633.42x = 432,812.97 × 170,392.21 - Step 4: Simplify right side
313,633.42x = 73,747,957,392.93 - Step 5: Solve for x
x = 73,747,957,392.93/313,633.42 - Step 6: Final answer
x = 235,140.62
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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.