Finding the Fourth Proportional to 317,631.94, 438,207.05 and 181,592.80
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Solution
The fourth proportional to 317,631.94, 438,207.05 and 181,592.80 is: 250,526.58
Step by Step Solution
- Step 1: Write the proportion equation
317,631.94 : 438,207.05 = 181,592.80 : x - Step 2: Convert to fraction form
317,631.94/438,207.05 = 181,592.80/x - Step 3: Cross multiply
317,631.94x = 438,207.05 × 181,592.80 - Step 4: Simplify right side
317,631.94x = 79,575,245,189.24 - Step 5: Solve for x
x = 79,575,245,189.24/317,631.94 - Step 6: Final answer
x = 250,526.58
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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.