Finding the Fourth Proportional to 756.84, 1,135.12 and 208.99
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Solution
The fourth proportional to 756.84, 1,135.12 and 208.99 is: 313.44
Step by Step Solution
- Step 1: Write the proportion equation
756.84 : 1,135.12 = 208.99 : x - Step 2: Convert to fraction form
756.84/1,135.12 = 208.99/x - Step 3: Cross multiply
756.84x = 1,135.12 × 208.99 - Step 4: Simplify right side
756.84x = 237,227.41 - Step 5: Solve for x
x = 237,227.41/756.84 - Step 6: Final answer
x = 313.44
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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.