Finding the Fourth Proportional to 435.05, 649.73 and 348.52
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Solution
The fourth proportional to 435.05, 649.73 and 348.52 is: 520.50
Step by Step Solution
- Step 1: Write the proportion equation
435.05 : 649.73 = 348.52 : x - Step 2: Convert to fraction form
435.05/649.73 = 348.52/x - Step 3: Cross multiply
435.05x = 649.73 × 348.52 - Step 4: Simplify right side
435.05x = 226,443.15 - Step 5: Solve for x
x = 226,443.15/435.05 - Step 6: Final answer
x = 520.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.