Finding the Fourth Proportional to 149.99, 224.91 and 68.79
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Solution
The fourth proportional to 149.99, 224.91 and 68.79 is: 103.15
Step by Step Solution
- Step 1: Write the proportion equation
149.99 : 224.91 = 68.79 : x - Step 2: Convert to fraction form
149.99/224.91 = 68.79/x - Step 3: Cross multiply
149.99x = 224.91 × 68.79 - Step 4: Simplify right side
149.99x = 15,471.56 - Step 5: Solve for x
x = 15,471.56/149.99 - Step 6: Final answer
x = 103.15
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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.