Finding the Fourth Proportional to 211,457.63, 317,244.99 and 97,640.18
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Solution
The fourth proportional to 211,457.63, 317,244.99 and 97,640.18 is: 146,487.30
Step by Step Solution
- Step 1: Write the proportion equation
211,457.63 : 317,244.99 = 97,640.18 : x - Step 2: Convert to fraction form
211,457.63/317,244.99 = 97,640.18/x - Step 3: Cross multiply
211,457.63x = 317,244.99 × 97,640.18 - Step 4: Simplify right side
211,457.63x = 30,975,856,341.47 - Step 5: Solve for x
x = 30,975,856,341.47/211,457.63 - Step 6: Final answer
x = 146,487.30
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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.