Finding the Fourth Proportional to 211,241.84, 291,404.70 and 143,235.80
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Solution
The fourth proportional to 211,241.84, 291,404.70 and 143,235.80 is: 197,591.47
Step by Step Solution
- Step 1: Write the proportion equation
211,241.84 : 291,404.70 = 143,235.80 : x - Step 2: Convert to fraction form
211,241.84/291,404.70 = 143,235.80/x - Step 3: Cross multiply
211,241.84x = 291,404.70 × 143,235.80 - Step 4: Simplify right side
211,241.84x = 41,739,585,328.26 - Step 5: Solve for x
x = 41,739,585,328.26/211,241.84 - Step 6: Final answer
x = 197,591.47
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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.