Finding the Fourth Proportional to 316,396.29, 436,626.54 and 178,566.09
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Solution
The fourth proportional to 316,396.29, 436,626.54 and 178,566.09 is: 246,421.01
Step by Step Solution
- Step 1: Write the proportion equation
316,396.29 : 436,626.54 = 178,566.09 : x - Step 2: Convert to fraction form
316,396.29/436,626.54 = 178,566.09/x - Step 3: Cross multiply
316,396.29x = 436,626.54 × 178,566.09 - Step 4: Simplify right side
316,396.29x = 77,966,694,038.03 - Step 5: Solve for x
x = 77,966,694,038.03/316,396.29 - Step 6: Final answer
x = 246,421.01
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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.