Finding the Fourth Proportional to 319,201.26, 478,478.74 and 206,952.81
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Solution
The fourth proportional to 319,201.26, 478,478.74 and 206,952.81 is: 310,219.70
Step by Step Solution
- Step 1: Write the proportion equation
319,201.26 : 478,478.74 = 206,952.81 : x - Step 2: Convert to fraction form
319,201.26/478,478.74 = 206,952.81/x - Step 3: Cross multiply
319,201.26x = 478,478.74 × 206,952.81 - Step 4: Simplify right side
319,201.26x = 99,022,519,768.26 - Step 5: Solve for x
x = 99,022,519,768.26/319,201.26 - Step 6: Final answer
x = 310,219.70
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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.