Finding the Fourth Proportional to 309,735.99, 426,983.22 and 218,931.75
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Solution
The fourth proportional to 309,735.99, 426,983.22 and 218,931.75 is: 301,806.01
Step by Step Solution
- Step 1: Write the proportion equation
309,735.99 : 426,983.22 = 218,931.75 : x - Step 2: Convert to fraction form
309,735.99/426,983.22 = 218,931.75/x - Step 3: Cross multiply
309,735.99x = 426,983.22 × 218,931.75 - Step 4: Simplify right side
309,735.99x = 93,480,183,575.24 - Step 5: Solve for x
x = 93,480,183,575.24/309,735.99 - Step 6: Final answer
x = 301,806.01
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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.