Finding the Fourth Proportional to 432.74, 649.01 and 201.49
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Solution
The fourth proportional to 432.74, 649.01 and 201.49 is: 302.18
Step by Step Solution
- Step 1: Write the proportion equation
432.74 : 649.01 = 201.49 : x - Step 2: Convert to fraction form
432.74/649.01 = 201.49/x - Step 3: Cross multiply
432.74x = 649.01 × 201.49 - Step 4: Simplify right side
432.74x = 130,767.91 - Step 5: Solve for x
x = 130,767.91/432.74 - Step 6: Final answer
x = 302.18
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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.