Finding the Fourth Proportional to 316,549.44, 436,821.48 and 173,281.74
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Solution
The fourth proportional to 316,549.44, 436,821.48 and 173,281.74 is: 239,119.63
Step by Step Solution
- Step 1: Write the proportion equation
316,549.44 : 436,821.48 = 173,281.74 : x - Step 2: Convert to fraction form
316,549.44/436,821.48 = 173,281.74/x - Step 3: Cross multiply
316,549.44x = 436,821.48 × 173,281.74 - Step 4: Simplify right side
316,549.44x = 75,693,186,123.78 - Step 5: Solve for x
x = 75,693,186,123.78/316,549.44 - Step 6: Final answer
x = 239,119.63
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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.