Finding the Fourth Proportional to 320,968.91, 481,105.84 and 208,729.68
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Solution
The fourth proportional to 320,968.91, 481,105.84 and 208,729.68 is: 312,868.52
Step by Step Solution
- Step 1: Write the proportion equation
320,968.91 : 481,105.84 = 208,729.68 : x - Step 2: Convert to fraction form
320,968.91/481,105.84 = 208,729.68/x - Step 3: Cross multiply
320,968.91x = 481,105.84 × 208,729.68 - Step 4: Simplify right side
320,968.91x = 100,421,069,567.01 - Step 5: Solve for x
x = 100,421,069,567.01/320,968.91 - Step 6: Final answer
x = 312,868.52
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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.