Finding the Fourth Proportional to 457,785.68, 631,751.81 and 253,845.19
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Solution
The fourth proportional to 457,785.68, 631,751.81 and 253,845.19 is: 350,310.56
Step by Step Solution
- Step 1: Write the proportion equation
457,785.68 : 631,751.81 = 253,845.19 : x - Step 2: Convert to fraction form
457,785.68/631,751.81 = 253,845.19/x - Step 3: Cross multiply
457,785.68x = 631,751.81 × 253,845.19 - Step 4: Simplify right side
457,785.68x = 160,367,157,762.76 - Step 5: Solve for x
x = 160,367,157,762.76/457,785.68 - Step 6: Final answer
x = 350,310.56
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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.