Finding the Fourth Proportional to 358.35, 537.55 and 123.99
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Solution
The fourth proportional to 358.35, 537.55 and 123.99 is: 185.99
Step by Step Solution
- Step 1: Write the proportion equation
358.35 : 537.55 = 123.99 : x - Step 2: Convert to fraction form
358.35/537.55 = 123.99/x - Step 3: Cross multiply
358.35x = 537.55 × 123.99 - Step 4: Simplify right side
358.35x = 66,650.36 - Step 5: Solve for x
x = 66,650.36/358.35 - Step 6: Final answer
x = 185.99
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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.