Finding the Fourth Proportional to 199.99, 299.99 and 55.71
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Solution
The fourth proportional to 199.99, 299.99 and 55.71 is: 83.57
Step by Step Solution
- Step 1: Write the proportion equation
199.99 : 299.99 = 55.71 : x - Step 2: Convert to fraction form
199.99/299.99 = 55.71/x - Step 3: Cross multiply
199.99x = 299.99 × 55.71 - Step 4: Simplify right side
199.99x = 16,712.44 - Step 5: Solve for x
x = 16,712.44/199.99 - Step 6: Final answer
x = 83.57
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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.