Finding the Fourth Proportional to 306.99, 423.68 and 176.00
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Solution
The fourth proportional to 306.99, 423.68 and 176.00 is: 242.89
Step by Step Solution
- Step 1: Write the proportion equation
306.99 : 423.68 = 176.00 : x - Step 2: Convert to fraction form
306.99/423.68 = 176.00/x - Step 3: Cross multiply
306.99x = 423.68 × 176.00 - Step 4: Simplify right side
306.99x = 74,564.68 - Step 5: Solve for x
x = 74,564.68/306.99 - Step 6: Final answer
x = 242.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.