Finding the Fourth Proportional to 509.79, 764.84 and 201.79
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Solution
The fourth proportional to 509.79, 764.84 and 201.79 is: 302.75
Step by Step Solution
- Step 1: Write the proportion equation
509.79 : 764.84 = 201.79 : x - Step 2: Convert to fraction form
509.79/764.84 = 201.79/x - Step 3: Cross multiply
509.79x = 764.84 × 201.79 - Step 4: Simplify right side
509.79x = 154,338.52 - Step 5: Solve for x
x = 154,338.52/509.79 - Step 6: Final answer
x = 302.75
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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.