Finding the Fourth Proportional to 307.72, 424.68 and 174.99
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Solution
The fourth proportional to 307.72, 424.68 and 174.99 is: 241.49
Step by Step Solution
- Step 1: Write the proportion equation
307.72 : 424.68 = 174.99 : x - Step 2: Convert to fraction form
307.72/424.68 = 174.99/x - Step 3: Cross multiply
307.72x = 424.68 × 174.99 - Step 4: Simplify right side
307.72x = 74,313.12 - Step 5: Solve for x
x = 74,313.12/307.72 - Step 6: Final answer
x = 241.49
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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.