Finding the Fourth Proportional to 316,472.47, 436,736.14 and 173,229.44
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Solution
The fourth proportional to 316,472.47, 436,736.14 and 173,229.44 is: 239,058.88
Step by Step Solution
- Step 1: Write the proportion equation
316,472.47 : 436,736.14 = 173,229.44 : x - Step 2: Convert to fraction form
316,472.47/436,736.14 = 173,229.44/x - Step 3: Cross multiply
316,472.47x = 436,736.14 × 173,229.44 - Step 4: Simplify right side
316,472.47x = 75,655,554,343.21 - Step 5: Solve for x
x = 75,655,554,343.21/316,472.47 - Step 6: Final answer
x = 239,058.88
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1.5x scale
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.