Finding the Fourth Proportional to 437.09, 603.21 and 289.62
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Solution
The fourth proportional to 437.09, 603.21 and 289.62 is: 399.70
Step by Step Solution
- Step 1: Write the proportion equation
437.09 : 603.21 = 289.62 : x - Step 2: Convert to fraction form
437.09/603.21 = 289.62/x - Step 3: Cross multiply
437.09x = 603.21 × 289.62 - Step 4: Simplify right side
437.09x = 174,703.91 - Step 5: Solve for x
x = 174,703.91/437.09 - Step 6: Final answer
x = 399.70
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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.