Finding the Fourth Proportional to 204.99, 307.49 and 68.06
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Solution
The fourth proportional to 204.99, 307.49 and 68.06 is: 102.08
Step by Step Solution
- Step 1: Write the proportion equation
204.99 : 307.49 = 68.06 : x - Step 2: Convert to fraction form
204.99/307.49 = 68.06/x - Step 3: Cross multiply
204.99x = 307.49 × 68.06 - Step 4: Simplify right side
204.99x = 20,925.89 - Step 5: Solve for x
x = 20,925.89/204.99 - Step 6: Final answer
x = 102.08
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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.