Finding the Fourth Proportional to 316,217.74, 436,310.55 and 193,736.00
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Solution
The fourth proportional to 316,217.74, 436,310.55 and 193,736.00 is: 267,312.83
Step by Step Solution
- Step 1: Write the proportion equation
316,217.74 : 436,310.55 = 193,736.00 : x - Step 2: Convert to fraction form
316,217.74/436,310.55 = 193,736.00/x - Step 3: Cross multiply
316,217.74x = 436,310.55 × 193,736.00 - Step 4: Simplify right side
316,217.74x = 84,529,058,533.25 - Step 5: Solve for x
x = 84,529,058,533.25/316,217.74 - Step 6: Final answer
x = 267,312.83
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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.