Finding the Fourth Proportional to 339.99, 509.98 and 134.65
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Solution
The fourth proportional to 339.99, 509.98 and 134.65 is: 201.98
Step by Step Solution
- Step 1: Write the proportion equation
339.99 : 509.98 = 134.65 : x - Step 2: Convert to fraction form
339.99/509.98 = 134.65/x - Step 3: Cross multiply
339.99x = 509.98 × 134.65 - Step 4: Simplify right side
339.99x = 68,668.81 - Step 5: Solve for x
x = 68,668.81/339.99 - Step 6: Final answer
x = 201.98
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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.