Finding the Fourth Proportional to 457,310.94, 631,107.99 and 256,108.38
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Solution
The fourth proportional to 457,310.94, 631,107.99 and 256,108.38 is: 353,440.14
Step by Step Solution
- Step 1: Write the proportion equation
457,310.94 : 631,107.99 = 256,108.38 : x - Step 2: Convert to fraction form
457,310.94/631,107.99 = 256,108.38/x - Step 3: Cross multiply
457,310.94x = 631,107.99 × 256,108.38 - Step 4: Simplify right side
457,310.94x = 161,632,044,923.96 - Step 5: Solve for x
x = 161,632,044,923.96/457,310.94 - Step 6: Final answer
x = 353,440.14
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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.