Finding the Fourth Proportional to 316,083.12, 436,063.32 and 207,157.68
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Solution
The fourth proportional to 316,083.12, 436,063.32 and 207,157.68 is: 285,791.49
Step by Step Solution
- Step 1: Write the proportion equation
316,083.12 : 436,063.32 = 207,157.68 : x - Step 2: Convert to fraction form
316,083.12/436,063.32 = 207,157.68/x - Step 3: Cross multiply
316,083.12x = 436,063.32 × 207,157.68 - Step 4: Simplify right side
316,083.12x = 90,333,865,704.30 - Step 5: Solve for x
x = 90,333,865,704.30/316,083.12 - Step 6: Final answer
x = 285,791.49
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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.