Finding the Fourth Proportional to 478,109.30, 717,241.77 and 141,183.99
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Solution
The fourth proportional to 478,109.30, 717,241.77 and 141,183.99 is: 211,798.97
Step by Step Solution
- Step 1: Write the proportion equation
478,109.30 : 717,241.77 = 141,183.99 : x - Step 2: Convert to fraction form
478,109.30/717,241.77 = 141,183.99/x - Step 3: Cross multiply
478,109.30x = 717,241.77 × 141,183.99 - Step 4: Simplify right side
478,109.30x = 101,263,054,883.26 - Step 5: Solve for x
x = 101,263,054,883.26/478,109.30 - Step 6: Final answer
x = 211,798.97
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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.