Finding the Fourth Proportional to 765.99, 1,149.45 and 303.99
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Solution
The fourth proportional to 765.99, 1,149.45 and 303.99 is: 456.17
Step by Step Solution
- Step 1: Write the proportion equation
765.99 : 1,149.45 = 303.99 : x - Step 2: Convert to fraction form
765.99/1,149.45 = 303.99/x - Step 3: Cross multiply
765.99x = 1,149.45 × 303.99 - Step 4: Simplify right side
765.99x = 349,421.31 - Step 5: Solve for x
x = 349,421.31/765.99 - Step 6: Final answer
x = 456.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.