Finding the Fourth Proportional to 320,716.42, 480,690.71 and 149,708.06
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Solution
The fourth proportional to 320,716.42, 480,690.71 and 149,708.06 is: 224,382.88
Step by Step Solution
- Step 1: Write the proportion equation
320,716.42 : 480,690.71 = 149,708.06 : x - Step 2: Convert to fraction form
320,716.42/480,690.71 = 149,708.06/x - Step 3: Cross multiply
320,716.42x = 480,690.71 × 149,708.06 - Step 4: Simplify right side
320,716.42x = 71,963,273,708.23 - Step 5: Solve for x
x = 71,963,273,708.23/320,716.42 - Step 6: Final answer
x = 224,382.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.