Finding the Fourth Proportional to 204.99, 307.50 and 68.05
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Solution
The fourth proportional to 204.99, 307.50 and 68.05 is: 102.08
Step by Step Solution
- Step 1: Write the proportion equation
204.99 : 307.50 = 68.05 : x - Step 2: Convert to fraction form
204.99/307.50 = 68.05/x - Step 3: Cross multiply
204.99x = 307.50 × 68.05 - Step 4: Simplify right side
204.99x = 20,925.67 - Step 5: Solve for x
x = 20,925.67/204.99 - 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.