Finding the Fourth Proportional to 205.04, 307.69 and 83.30
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Solution
The fourth proportional to 205.04, 307.69 and 83.30 is: 124.99
Step by Step Solution
- Step 1: Write the proportion equation
205.04 : 307.69 = 83.30 : x - Step 2: Convert to fraction form
205.04/307.69 = 83.30/x - Step 3: Cross multiply
205.04x = 307.69 × 83.30 - Step 4: Simplify right side
205.04x = 25,628.83 - Step 5: Solve for x
x = 25,628.83/205.04 - Step 6: Final answer
x = 124.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.