Finding the Fourth Proportional to 383,317.85, 528,982.12 and 211,241.99
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Solution
The fourth proportional to 383,317.85, 528,982.12 and 211,241.99 is: 291,515.86
Step by Step Solution
- Step 1: Write the proportion equation
383,317.85 : 528,982.12 = 211,241.99 : x - Step 2: Convert to fraction form
383,317.85/528,982.12 = 211,241.99/x - Step 3: Cross multiply
383,317.85x = 528,982.12 × 211,241.99 - Step 4: Simplify right side
383,317.85x = 111,743,233,058.31 - Step 5: Solve for x
x = 111,743,233,058.31/383,317.85 - Step 6: Final answer
x = 291,515.86
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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.