Finding the Fourth Proportional to 326,813.48, 490,109.99 and 124,361.53
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Solution
The fourth proportional to 326,813.48, 490,109.99 and 124,361.53 is: 186,500.34
Step by Step Solution
- Step 1: Write the proportion equation
326,813.48 : 490,109.99 = 124,361.53 : x - Step 2: Convert to fraction form
326,813.48/490,109.99 = 124,361.53/x - Step 3: Cross multiply
326,813.48x = 490,109.99 × 124,361.53 - Step 4: Simplify right side
326,813.48x = 60,950,827,077.14 - Step 5: Solve for x
x = 60,950,827,077.14/326,813.48 - Step 6: Final answer
x = 186,500.34
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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.