Finding the Fourth Proportional to 307.68, 462.08 and 242.88
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Solution
The fourth proportional to 307.68, 462.08 and 242.88 is: 364.76
Step by Step Solution
- Step 1: Write the proportion equation
307.68 : 462.08 = 242.88 : x - Step 2: Convert to fraction form
307.68/462.08 = 242.88/x - Step 3: Cross multiply
307.68x = 462.08 × 242.88 - Step 4: Simplify right side
307.68x = 112,229.99 - Step 5: Solve for x
x = 112,229.99/307.68 - Step 6: Final answer
x = 364.76
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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.