Finding the Fourth Proportional to 211,456.13, 317,242.74 and 97,638.68
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Solution
The fourth proportional to 211,456.13, 317,242.74 and 97,638.68 is: 146,485.05
Step by Step Solution
- Step 1: Write the proportion equation
211,456.13 : 317,242.74 = 97,638.68 : x - Step 2: Convert to fraction form
211,456.13/317,242.74 = 97,638.68/x - Step 3: Cross multiply
211,456.13x = 317,242.74 × 97,638.68 - Step 4: Simplify right side
211,456.13x = 30,975,160,786.97 - Step 5: Solve for x
x = 30,975,160,786.97/211,456.13 - Step 6: Final answer
x = 146,485.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.