Finding the Fourth Proportional to 481,981.08, 665,436.36 and 310,197.55
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Solution
The fourth proportional to 481,981.08, 665,436.36 and 310,197.55 is: 428,267.28
Step by Step Solution
- Step 1: Write the proportion equation
481,981.08 : 665,436.36 = 310,197.55 : x - Step 2: Convert to fraction form
481,981.08/665,436.36 = 310,197.55/x - Step 3: Cross multiply
481,981.08x = 665,436.36 × 310,197.55 - Step 4: Simplify right side
481,981.08x = 206,416,729,300.26 - Step 5: Solve for x
x = 206,416,729,300.26/481,981.08 - Step 6: Final answer
x = 428,267.28
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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.