Finding the Fourth Proportional to 316,769.63, 437,138.61 and 171,571.80
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Solution
The fourth proportional to 316,769.63, 437,138.61 and 171,571.80 is: 236,767.20
Step by Step Solution
- Step 1: Write the proportion equation
316,769.63 : 437,138.61 = 171,571.80 : x - Step 2: Convert to fraction form
316,769.63/437,138.61 = 171,571.80/x - Step 3: Cross multiply
316,769.63x = 437,138.61 × 171,571.80 - Step 4: Simplify right side
316,769.63x = 75,000,658,167.20 - Step 5: Solve for x
x = 75,000,658,167.20/316,769.63 - Step 6: Final answer
x = 236,767.20
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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.