Finding the Fourth Proportional to 313,398.42, 432,845.91 and 211,247.70
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Solution
The fourth proportional to 313,398.42, 432,845.91 and 211,247.70 is: 291,761.85
Step by Step Solution
- Step 1: Write the proportion equation
313,398.42 : 432,845.91 = 211,247.70 : x - Step 2: Convert to fraction form
313,398.42/432,845.91 = 211,247.70/x - Step 3: Cross multiply
313,398.42x = 432,845.91 × 211,247.70 - Step 4: Simplify right side
313,398.42x = 91,437,702,941.91 - Step 5: Solve for x
x = 91,437,702,941.91/313,398.42 - Step 6: Final answer
x = 291,761.85
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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.