Finding the Fourth Proportional to 306,919.58, 423,614.38 and 206,259.26
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Solution
The fourth proportional to 306,919.58, 423,614.38 and 206,259.26 is: 284,681.70
Step by Step Solution
- Step 1: Write the proportion equation
306,919.58 : 423,614.38 = 206,259.26 : x - Step 2: Convert to fraction form
306,919.58/423,614.38 = 206,259.26/x - Step 3: Cross multiply
306,919.58x = 423,614.38 × 206,259.26 - Step 4: Simplify right side
306,919.58x = 87,374,388,544.16 - Step 5: Solve for x
x = 87,374,388,544.16/306,919.58 - Step 6: Final answer
x = 284,681.70
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1.5x scale
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.