Finding the Fourth Proportional to 313,632.54, 432,814.97 and 170,392.55
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Solution
The fourth proportional to 313,632.54, 432,814.97 and 170,392.55 is: 235,142.84
Step by Step Solution
- Step 1: Write the proportion equation
313,632.54 : 432,814.97 = 170,392.55 : x - Step 2: Convert to fraction form
313,632.54/432,814.97 = 170,392.55/x - Step 3: Cross multiply
313,632.54x = 432,814.97 × 170,392.55 - Step 4: Simplify right side
313,632.54x = 73,748,444,678.38 - Step 5: Solve for x
x = 73,748,444,678.38/313,632.54 - Step 6: Final answer
x = 235,142.84
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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.