Finding the Fourth Proportional to 470.36, 649.09 and 260.53
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Solution
The fourth proportional to 470.36, 649.09 and 260.53 is: 359.53
Step by Step Solution
- Step 1: Write the proportion equation
470.36 : 649.09 = 260.53 : x - Step 2: Convert to fraction form
470.36/649.09 = 260.53/x - Step 3: Cross multiply
470.36x = 649.09 × 260.53 - Step 4: Simplify right side
470.36x = 169,107.42 - Step 5: Solve for x
x = 169,107.42/470.36 - Step 6: Final answer
x = 359.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.