Finding the Fourth Proportional to 307.99, 461.78 and 125.44
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Solution
The fourth proportional to 307.99, 461.78 and 125.44 is: 188.08
Step by Step Solution
- Step 1: Write the proportion equation
307.99 : 461.78 = 125.44 : x - Step 2: Convert to fraction form
307.99/461.78 = 125.44/x - Step 3: Cross multiply
307.99x = 461.78 × 125.44 - Step 4: Simplify right side
307.99x = 57,925.68 - Step 5: Solve for x
x = 57,925.68/307.99 - Step 6: Final answer
x = 188.08
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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.