Finding the Fourth Proportional to 286.84, 430.21 and 176.99
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Solution
The fourth proportional to 286.84, 430.21 and 176.99 is: 265.45
Step by Step Solution
- Step 1: Write the proportion equation
286.84 : 430.21 = 176.99 : x - Step 2: Convert to fraction form
286.84/430.21 = 176.99/x - Step 3: Cross multiply
286.84x = 430.21 × 176.99 - Step 4: Simplify right side
286.84x = 76,140.94 - Step 5: Solve for x
x = 76,140.94/286.84 - Step 6: Final answer
x = 265.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.