Finding the Fourth Proportional to 339.88, 509.67 and 202.99
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Solution
The fourth proportional to 339.88, 509.67 and 202.99 is: 304.40
Step by Step Solution
- Step 1: Write the proportion equation
339.88 : 509.67 = 202.99 : x - Step 2: Convert to fraction form
339.88/509.67 = 202.99/x - Step 3: Cross multiply
339.88x = 509.67 × 202.99 - Step 4: Simplify right side
339.88x = 103,457.91 - Step 5: Solve for x
x = 103,457.91/339.88 - Step 6: Final answer
x = 304.40
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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.