Finding the Fourth Proportional to 316,586.97, 436,887.99 and 171,391.68
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Solution
The fourth proportional to 316,586.97, 436,887.99 and 171,391.68 is: 236,519.42
Step by Step Solution
- Step 1: Write the proportion equation
316,586.97 : 436,887.99 = 171,391.68 : x - Step 2: Convert to fraction form
316,586.97/436,887.99 = 171,391.68/x - Step 3: Cross multiply
316,586.97x = 436,887.99 × 171,391.68 - Step 4: Simplify right side
316,586.97x = 74,878,966,577.92 - Step 5: Solve for x
x = 74,878,966,577.92/316,586.97 - Step 6: Final answer
x = 236,519.42
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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.