Finding the Fourth Proportional to 324.98, 487.47 and 215.99
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Solution
The fourth proportional to 324.98, 487.47 and 215.99 is: 323.99
Step by Step Solution
- Step 1: Write the proportion equation
324.98 : 487.47 = 215.99 : x - Step 2: Convert to fraction form
324.98/487.47 = 215.99/x - Step 3: Cross multiply
324.98x = 487.47 × 215.99 - Step 4: Simplify right side
324.98x = 105,288.65 - Step 5: Solve for x
x = 105,288.65/324.98 - Step 6: Final answer
x = 323.99
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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.