Finding the Fourth Proportional to 765.99, 1,149.80 and 303.75
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Solution
The fourth proportional to 765.99, 1,149.80 and 303.75 is: 455.95
Step by Step Solution
- Step 1: Write the proportion equation
765.99 : 1,149.80 = 303.75 : x - Step 2: Convert to fraction form
765.99/1,149.80 = 303.75/x - Step 3: Cross multiply
765.99x = 1,149.80 × 303.75 - Step 4: Simplify right side
765.99x = 349,250.23 - Step 5: Solve for x
x = 349,250.23/765.99 - Step 6: Final answer
x = 455.95
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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.